Catalina broke some big applications for me. Microsoft has put a lot of work into making things compatible to almost absurd levels (Windows 95 is still an option on running apps)
I’d rather break apps. I’m glad Apple does that. It’s not the platform for backward compatibility. Also, Windows is just a telemetry/Ad platform now. That’s not very appealing.
People said that about whatever the one before Catalina is called but it’s been great for me. Only problem I experienced was drag/drop from Chrome anymore for some reason. Works from other browsers.