I wrote a script which swaps the two foreground workspaces between monitors

[XavierChanth]

It is a little lengthy, so I've pasted the permalink:

https://github.com/XavierChanth/dotfiles/blob/ab35b4907db15daf55134d4d15ad7402f4f87fec/dotfiles/dot-local/bin/aerospace-util.d/swap-workspace-monitors

The usage is path/to/script [--wrap-around] (next|prev)

up|down|right|left won't work as it depends on aerospace move-workspace-to-monitor which doesn't support that.

It is a little bit slow, as it has to perform a few aerospace operations... what I have now is the bare minimum aerospace commands required.

I find myself browsing something on my secondary display and I just quickly want to move it to the main monitor until I find the thing I want to reference, then I swap back.

It also handles the case where a workspace is pinned to a monitor and can't be moved. It will restore the original state in that scenario.