Wrong directory opens under Cinnamon on Gentoo (vestigial --unity-launch flag)

[ActuallyTheOwner]

Describe the bug
The last directory you open under vscodium opens when you right click to open a file with vscodium

Please confirm that this problem is VSCodium-specific

• [X ] This bug doesn't happen if I use Microsoft's Visual Studio Code. It only happens in VSCodium.
  Deprecate the --unity-launch flag microsoft/vscode#202545

Please confirm that the issue/resolution isn't already documented

• [ ✓] I checked the Docs page and the Troubleshooting page and my issue is not mentioned there.

To Reproduce
Steps to reproduce the behavior:

1. Launch cinnamon desktop
2. Open vs codium
3. In vscodium, open any dir or file
4. Close Vs codium
5. Open a file manager
6. Right click a file and open with vscodium
7. You see the last location at step 3

Expected behavior
Vs codium should open the right clicked file

Screenshots
N/A

Desktop (please complete the following information):

• Gentoo
• x86_64
• N/A
• Compiled from github
• Not Sandboxed

Additional context
The bug is easily fixed user side

nano /usr/share/applications/vscodium.desktop

delete --unity-launch
save and exit

Note, due to microsoft/vscode#202545 being closed, the vestigial flag got left behind.

[daiyam]

It's an issue with the gentoo packaging. We don't have control on it.
The problematic file is at https://gitweb.gentoo.org/repo/gentoo.git/tree/app-editors/vscodium/files/vscodium.desktop