As mentioned in the title, sometimes using alt-tab gets stuck in the screen mode when only open apps are shown in the dock. This is very problematic for me as when stuck no operations can be done.
I am not even able to take a screenshot of this bug and I don't know any other way to help you understand the bug (if there is a way, using some logs, etc please let me know) so, I made a video of this from my phone. Apologies but it was my only option as I could see.
I will be linking the video here when it's uploaded: https://photos.app.goo.gl/YDMCYRZO5LP2hdDx2.
The one workaround I have figured out is to press
alt + shift combination. But I was curious as to why this even happens and if at all, it can be corrected.