If you're in the MS ecosystem then OneDrive supports application syncing as a thing and so does Joplin including on its mobile clients. It's basically free seemless cloud syncing once you set it up.

I use OneNote a lot with hand-written notes (on a Surface Pro). And I think it is an excellent piece of software... but I'm highly uncomfortable about vendor lock-in, and about over-sharing data with Microsoft (or any mega-corp).

Over recent years, Microsoft have been pushing harder and harder into their data sharing stuff to the point where some features that have nothing whatsoever to do with online data are still disabled unless you enable 'online connected experiences'. So it's probably a good time to get out of that ecosystem rather than into it.

I like Joplin; but the main reason I use OneNote is to write and draw on it with a stylus. So until Joplin has full stylus support, it's hard for me to completely switch over to it without completely changing how I make notes.