The track record for compatibility in the tools I mentioned is extremely good. Even when new approaches were launched (Hooks, Composition in Vue), backwards compatibility was kept. You can even mix and match approaches in the same app. Of course there's Angular, but that's the exception to the rule.

Heck, Microsoft has completely changed the way of writing native Windows apps in the last 10 years more ways than Javascript frameworks have introduced new stuff. Apple even changed the language to one that (unlike Typescript) is not backwards compatible. Complaining about the JS ecosystem evolving too fast is anachronistic, that happened more than 8 years ago.

Had a year long project in Angular. Most of the time was spent rewriting the app and learning the right way “again”