Big Sur - unresponsive dialogs to mouse actions
So I tested it in the &quot;Safe mode&quot; and no problem. After I restarted to normal mode, the problem is also gone ‍♂️
Strange, I know I have quite a long uptime, but I installed an update to macOS 11.2.2 last week and the problem survived the installation of the update and restart.
Hope it will never return