FWIW I don't have the same experience at all — I mostly find each release, MacOS gets a bit better. I don't see lots of bugs.
The weight of commenters here is clearly not in the favor of my experience!
Maybe that's because I don't notice things? Or I don't use many of Mac apps, like Mail / Finder / Mission Control / etc (thanks to Alacritty + VSCode + Contexts + Amethyst)?
But I have to use Windows & Linux machines for other things, and I vastly prefer using a Mac.
I’ve not noticed any of the issues either. Could it be crappy third party mouse or keyboard customisation software? I’ve noticed that Logitech software has sometimes has sometimes caused wierd issues over the years.
Logitech’s drivers are awful and you don’t need them for basic mouse functionality. Do without if you can.