#linux friends!
One of the most popular features of MacOS are it's "continuity features" which allows clipboard, activity, screen, and notification sharing.
KDE Connect does nearly all of this but it doesn't seem to be used nearly as much. It's certainly well known and liked. Why do you think it isn't used more? I've been told a few things things:
1. It's more complicated to setup
2. It's a bit of a swiss army knife and a bit complex
3. It doesn't work on some wifi networks