Firefox freezes the entire system 10-20 seconds after startup

Everything worked fine until today, updated the system yesterday. Cursor works, I can start the reboot and such, but not app will open, no terminal command can be performed, and the shutdown doesn't finish after 30 minutes, meaning I have to perform a SysRq reboot to actually do something. Will check Discord and VSCode in a second, also try to apt update and post findings in an edit. Worst case I can wait for an update using dual-booted windows.

Edit: Apparently the problem fixed itself - none of the apps crashed, even when I went back to the previous settings. I've booted into Windows to write this post which might've helped (instead of breaking things the usual way), apt didn't do anything, but there were 2 runtime updates on Pop shop which I've installed prior to starting Firefox. Anyway, one of them can help if any of you are unfortunate enough to have the same problem.