As seen in the GIF provided:
Selecting groups while in lighting preview causes a weird effect on the edges of the camera that mirrors some stuff seen.
Only happens after baking lightpreview, if you change back to textured afterwards it stays bugged in the same place and doesnt move anymore but only disappears when restarting.
I'm on Windows 11, if that matters.
https://i.imgur.com/5DxhuNP.gif