I'm not sure how exactly to describe this. Windows that obscure the actually active window. Focus not being where it should. Seems especially to hit Electron apps although I observe it regularly with Calendar.app as well. It seems to have hit in a recent OS Update. I think at least 14.3 or 14.4.
I'm mostly curious if this is a known issue or not. I see it widely reported at my employer so that's reach of several thousand.
As one example, here's a heavily obfuscated screenshot where Slack is at the top of the window stack but Chrome actually has the focus and is shown that way in the menu bar.
Some more examples:
Monosnap with active focus but Messenger.app at top of window focus:
Chrome with active focus but Messenger.app at top of window focus:
