This is easy to do when you eschew any and all commitment to backwards compatibility. Every major OS update has introduced breaking changes and I gotta be honest, everyone except the most diehard of Mac fans is getting pretty sick and tired of routinely re-purchasing software, not to mention Apple breaking their own applications. Example: obsoleting iTunes by force and coding hooks so it refuses to run without patching the app. (For those wondering, Apple coded a version check into the Mac version of iTunes so that it refuses to launch if the OS is "too new.") Ignore the fact that Apple Music is a shitty replacement that didn't replace all the features of iTunes (like removing the XML library sync, which a ton of third-party apps relied on, breaking them all in one move), but dont't let that stand in the way of progress.
Show me one person that has never been affected by Apple breaking apps, and I'll show you ten people with Avid or Pro Tools rigs who "never update the OS" as a general policy. It's 2022 and I'm still waiting for official EOL/support dates published by Apple. Everyone from Microsoft to FreeBSD does this. Saying "well they traditionally support N-2" or whatever doesn't cut it. People need hard dates so they can plan adequately. Apple's commitment in this area is like depending on your stoner friend to follow through on a promise.