diff --git a/src/account-info/AccountDetails.js b/src/account-info/AccountDetails.js
index effec9a796b..cdb61a7ad4a 100644
--- a/src/account-info/AccountDetails.js
+++ b/src/account-info/AccountDetails.js
@@ -1,5 +1,6 @@
 /* @flow strict-local */
 import React from 'react';
+import type { Node } from 'react';
 import { View } from 'react-native';
 
 import type { UserOrBot } from '../types';
@@ -33,7 +34,7 @@ type Props = $ReadOnly<{|
   user: UserOrBot,
 |}>;
 
-export default function AccountDetails(props: Props) {
+export default function AccountDetails(props: Props): Node {
   const { user } = props;
 
   const ownUser = useSelector(getOwnUser);
diff --git a/src/account-info/AccountDetailsScreen.js b/src/account-info/AccountDetailsScreen.js
index 39278ff8abd..9a02cf37f36 100644
--- a/src/account-info/AccountDetailsScreen.js
+++ b/src/account-info/AccountDetailsScreen.js
@@ -1,5 +1,6 @@
 /* @flow strict-local */
 import React, { useCallback } from 'react';
+import type { Node } from 'react';
 
 import type { RouteProp } from '../react-navigation';
 import type { AppNavigationProp } from '../nav/AppNavigator';
@@ -30,7 +31,7 @@ type Props = $ReadOnly<{|
   route: RouteProp<'account-details', {| userId: UserId |}>,
 |}>;
 
-export default function AccountDetailsScreen(props: Props) {
+export default function AccountDetailsScreen(props: Props): Node {
   const dispatch = useDispatch();
   const user = useSelector(state => getUserForId(state, props.route.params.userId));
   const isActive = useSelector(state => getUserIsActive(state, props.route.params.userId));
diff --git a/src/common/ZulipStatusBar.js b/src/common/ZulipStatusBar.js
index ce9473fb5e2..b740ea819e1 100644
--- a/src/common/ZulipStatusBar.js
+++ b/src/common/ZulipStatusBar.js
@@ -1,6 +1,7 @@
 /* @flow strict-local */
 
 import React from 'react';
+import type { Node } from 'react';
 import { Platform, StatusBar } from 'react-native';
 // $FlowFixMe[untyped-import]
 import Color from 'color';
@@ -42,7 +43,7 @@ type Props = $ReadOnly<{|
  * top inset grows to accommodate a visible status bar, and shrinks to
  * give more room to the app's content when the status bar is hidden.
  */
-export default function ZulipStatusBar(props: Props) {
+export default function ZulipStatusBar(props: Props): Node {
   const { hidden = false } = props;
   const theme = useSelector(state => getSettings(state).theme);
   const orientation = useSelector(state => getSession(state).orientation);
diff --git a/src/emoji/Emoji.js b/src/emoji/Emoji.js
index be1e06e7593..c35fd2ac948 100644
--- a/src/emoji/Emoji.js
+++ b/src/emoji/Emoji.js
@@ -1,5 +1,6 @@
 /* @flow strict-local */
 import React from 'react';
+import type { Node } from 'react';
 import { Image } from 'react-native';
 import { createIconSet } from 'react-native-vector-icons';
 
@@ -23,7 +24,7 @@ const componentStyles = createStyleSheet({
   image: { width: 20, height: 20 },
 });
 
-export default function Emoji(props: Props) {
+export default function Emoji(props: Props): Node {
   const { code } = props;
   const imageEmoji = useSelector(state =>
     props.type === 'image' ? getAllImageEmojiByCode(state)[props.code] : undefined,
diff --git a/src/emoji/EmojiPickerScreen.js b/src/emoji/EmojiPickerScreen.js
index 97fba69491d..62b844701dd 100644
--- a/src/emoji/EmojiPickerScreen.js
+++ b/src/emoji/EmojiPickerScreen.js
@@ -1,6 +1,7 @@
 /* @flow strict-local */
 
 import React, { useState, useCallback } from 'react';
+import type { Node } from 'react';
 import { FlatList } from 'react-native';
 
 import type { RouteProp } from '../react-navigation';
@@ -24,7 +25,7 @@ type Props = $ReadOnly<{|
   route: RouteProp<'emoji-picker', {| messageId: number |}>,
 |}>;
 
-export default function EmojiPickerScreen(props: Props) {
+export default function EmojiPickerScreen(props: Props): Node {
   const { route } = props;
   const { messageId } = route.params;
 
diff --git a/src/message/MentionedUserNotSubscribed.js b/src/message/MentionedUserNotSubscribed.js
index 9f8d8be4d0f..7c0140d4ef9 100644
--- a/src/message/MentionedUserNotSubscribed.js
+++ b/src/message/MentionedUserNotSubscribed.js
@@ -1,6 +1,7 @@
 /* @flow strict-local */
 
 import React, { useCallback } from 'react';
+import type { Node } from 'react';
 import { View, TouchableOpacity } from 'react-native';
 
 import type { Stream, UserOrBot, Subscription } from '../types';
@@ -49,7 +50,7 @@ const styles = createStyleSheet({
   },
 });
 
-export default function MentionedUserNotSubscribed(props: Props) {
+export default function MentionedUserNotSubscribed(props: Props): Node {
   const { user, stream, onDismiss } = props;
   const auth = useSelector(getAuth);
 
diff --git a/src/message/NotSubscribed.js b/src/message/NotSubscribed.js
index ff0fe479131..d88474ab215 100644
--- a/src/message/NotSubscribed.js
+++ b/src/message/NotSubscribed.js
@@ -1,6 +1,7 @@
 /* @flow strict-local */
 
 import React, { useCallback } from 'react';
+import type { Node } from 'react';
 import { View } from 'react-native';
 
 import type { Stream, Narrow } from '../types';
@@ -14,7 +15,7 @@ type Props = $ReadOnly<{|
   narrow: Narrow,
 |}>;
 
-export default function NotSubscribed(props: Props) {
+export default function NotSubscribed(props: Props): Node {
   const auth = useSelector(getAuth);
   const stream: $ReadOnly<{ ...Stream, ... }> = useSelector(state =>
     getStreamInNarrow(state, props.narrow),
diff --git a/src/nav/ZulipNavigationContainer.js b/src/nav/ZulipNavigationContainer.js
index 27bb912e18f..14581b43caa 100644
--- a/src/nav/ZulipNavigationContainer.js
+++ b/src/nav/ZulipNavigationContainer.js
@@ -1,5 +1,6 @@
 /* @flow strict-local */
 import React, { useContext, useEffect } from 'react';
+import type { Node } from 'react';
 import { NavigationContainer, DefaultTheme, DarkTheme } from '@react-navigation/native';
 
 import { useSelector } from '../react-redux';
@@ -20,7 +21,7 @@ type Props = $ReadOnly<{||}>;
  * - Call `createAppContainer` with the appropriate `initialRouteName`
  *   and `initialRouteParams` which we get from data in Redux.
  */
-export default function ZulipAppContainer(props: Props) {
+export default function ZulipAppContainer(props: Props): Node {
   const themeName = useSelector(state => getSettings(state).theme);
 
   useEffect(
diff --git a/src/streams/EditStreamScreen.js b/src/streams/EditStreamScreen.js
index 0592e380ce1..06ab4acceb8 100644
--- a/src/streams/EditStreamScreen.js
+++ b/src/streams/EditStreamScreen.js
@@ -1,5 +1,6 @@
 /* @flow strict-local */
 import React, { useCallback } from 'react';
+import type { Node } from 'react';
 
 import type { RouteProp } from '../react-navigation';
 import type { AppNavigationProp } from '../nav/AppNavigator';
@@ -15,7 +16,7 @@ type Props = $ReadOnly<{|
   route: RouteProp<'edit-stream', {| streamId: number |}>,
 |}>;
 
-export default function EditStreamScreen(props: Props) {
+export default function EditStreamScreen(props: Props): Node {
   const dispatch = useDispatch();
   const stream = useSelector(state => getStreamForId(state, props.route.params.streamId));
 
diff --git a/src/streams/InviteUsersScreen.js b/src/streams/InviteUsersScreen.js
index c47ae7ae420..8ac2d48f7c2 100644
--- a/src/streams/InviteUsersScreen.js
+++ b/src/streams/InviteUsersScreen.js
@@ -1,5 +1,6 @@
 /* @flow strict-local */
 import React, { useState, useCallback } from 'react';
+import type { Node } from 'react';
 
 import type { RouteProp } from '../react-navigation';
 import type { AppNavigationProp } from '../nav/AppNavigator';
@@ -17,7 +18,7 @@ type Props = $ReadOnly<{|
   route: RouteProp<'invite-users', {| streamId: number |}>,
 |}>;
 
-export default function InviteUsersScreen(props: Props) {
+export default function InviteUsersScreen(props: Props): Node {
   const auth = useSelector(getAuth);
   const stream = useSelector(state => getStreamForId(state, props.route.params.streamId));
 
diff --git a/src/streams/StreamSettingsScreen.js b/src/streams/StreamSettingsScreen.js
index a66536b0e64..e0d4c0eae3f 100644
--- a/src/streams/StreamSettingsScreen.js
+++ b/src/streams/StreamSettingsScreen.js
@@ -1,5 +1,6 @@
 /* @flow strict-local */
 import React, { useCallback } from 'react';
+import type { Node } from 'react';
 import { View } from 'react-native';
 
 import type { RouteProp } from '../react-navigation';
@@ -26,7 +27,7 @@ type Props = $ReadOnly<{|
   route: RouteProp<'stream-settings', {| streamId: number |}>,
 |}>;
 
-export default function StreamSettingsScreen(props: Props) {
+export default function StreamSettingsScreen(props: Props): Node {
   const dispatch = useDispatch();
 
   const auth = useSelector(getAuth);
diff --git a/src/streams/SubscriptionsCard.js b/src/streams/SubscriptionsCard.js
index 3754ef6680f..049e9253c95 100644
--- a/src/streams/SubscriptionsCard.js
+++ b/src/streams/SubscriptionsCard.js
@@ -1,6 +1,7 @@
 /* @flow strict-local */
 
 import React, { useCallback } from 'react';
+import type { Node } from 'react';
 import { View } from 'react-native';
 
 import type { RouteProp } from '../react-navigation';
@@ -26,7 +27,7 @@ type Props = $ReadOnly<{|
   route: RouteProp<'subscribed', void>,
 |}>;
 
-export default function SubscriptionsCard(props: Props) {
+export default function SubscriptionsCard(props: Props): Node {
   const dispatch = useDispatch();
   const subscriptions = useSelector(getSubscribedStreams);
   const unreadByStream = useSelector(getUnreadByStream);
diff --git a/src/subscriptions/StreamListCard.js b/src/subscriptions/StreamListCard.js
index f010979aef3..a2cd140dc0d 100644
--- a/src/subscriptions/StreamListCard.js
+++ b/src/subscriptions/StreamListCard.js
@@ -1,6 +1,7 @@
 /* @flow strict-local */
 
 import React, { useCallback } from 'react';
+import type { Node } from 'react';
 import { View } from 'react-native';
 
 import type { RouteProp } from '../react-navigation';
@@ -30,7 +31,7 @@ type Props = $ReadOnly<{|
   route: RouteProp<'allStreams', void>,
 |}>;
 
-export default function StreamListCard(props: Props) {
+export default function StreamListCard(props: Props): Node {
   const dispatch = useDispatch();
   const auth = useSelector(getAuth);
   const canCreateStreams = useSelector(getCanCreateStreams);
diff --git a/src/title/ActivityText.js b/src/title/ActivityText.js
index a1a5933867c..0b9c844b10d 100644
--- a/src/title/ActivityText.js
+++ b/src/title/ActivityText.js
@@ -1,6 +1,7 @@
 /* @flow strict-local */
 
 import React from 'react';
+import type { Node } from 'react';
 import type { TextStyleProp } from 'react-native/Libraries/StyleSheet/StyleSheet';
 
 import type { UserOrBot } from '../types';
@@ -14,7 +15,7 @@ type Props = $ReadOnly<{|
   user: UserOrBot,
 |}>;
 
-export default function ActivityText(props: Props) {
+export default function ActivityText(props: Props): Node {
   const { style } = props;
   const presence = useSelector(state => getPresence(state)[props.user.email]);
   const userStatus = useSelector(state => getUserStatus(state)[props.user.user_id]);
diff --git a/src/topics/TopicListScreen.js b/src/topics/TopicListScreen.js
index 3579c9c7b37..a50edf8f9e8 100644
--- a/src/topics/TopicListScreen.js
+++ b/src/topics/TopicListScreen.js
@@ -1,6 +1,7 @@
 /* @flow strict-local */
 
 import React, { useState, useCallback, useEffect } from 'react';
+import type { Node } from 'react';
 
 import type { RouteProp } from '../react-navigation';
 import type { AppNavigationProp } from '../nav/AppNavigator';
@@ -17,7 +18,7 @@ type Props = $ReadOnly<{|
   route: RouteProp<'topic-list', {| streamId: number |}>,
 |}>;
 
-export default function TopicListScreen(props: Props) {
+export default function TopicListScreen(props: Props): Node {
   const dispatch = useDispatch();
   const stream = useSelector(state => getStreamForId(state, props.route.params.streamId));
   const topics = useSelector(state => getTopicsForStream(state, props.route.params.streamId));
diff --git a/src/user-status/UserStatusScreen.js b/src/user-status/UserStatusScreen.js
index 29762d1b426..0af77962799 100644
--- a/src/user-status/UserStatusScreen.js
+++ b/src/user-status/UserStatusScreen.js
@@ -1,5 +1,6 @@
 /* @flow strict-local */
 import React, { useState, useContext, useCallback } from 'react';
+import type { Node } from 'react';
 import { FlatList, View } from 'react-native';
 import { TranslationContext } from '../boot/TranslationProvider';
 import { createStyleSheet } from '../styles';
@@ -33,7 +34,7 @@ type Props = $ReadOnly<{|
   route: RouteProp<'user-status', void>,
 |}>;
 
-export default function UserStatusScreen(props: Props) {
+export default function UserStatusScreen(props: Props): Node {
   const dispatch = useDispatch();
   const userStatusText = useSelector(getSelfUserStatusText);