So your main complaint you’re stating in your post was caused by your setup/configuration.
I don’t see the point of such generalized threads, that things work and break - actually the sim doesn’t change from day to day. If something breaks that worked yesterday and there was no update for MSFS, it’s very likely that the issue is not the sim itself.
People install drivers, addons, mods, upgrade their PC, add peripherals, change game settings etc. all the time but blame the sim that is just sitting there for weeks without being updated at all.
Either there is a bug that has been there before and you didn’t notice it or the cause of an issue is very likely on your side.