I’m sure this was suggested in another comment but you could also create a new admin user account on the same machine and test. It might only be your profile which can build up crud over the years. It’s much quicker than a reinstall\refresh and just might solve those wacky issues. Wishing you a speedy return to…

Fahey, every time I think of Firewatch I think it’s you! And now I need to try Smoked Gouda and Shive!