I don't know the internal politics of it all, but hopefully the almost universal backlash they got on the post announcing the end of the non-UWP desktop version helped. They got utterly lambasted there and stopped commenting after it became clear they were not popular From the comments around this, it seems that educational institutions and other large organisations did not take the move very well (and just continued to use the desktop version). The writing has been on the wall for the UWP version for while though surely? Pretty much everywhere else at Microsoft has abandoned it. It would be a shame for it to go, though. It's not as if Microsoft can't afford to maintain both. All that said, for desktops, the UWP has terrible UI and still no feature parity after years. It would seem this is an admission they aren't going to fixing that. As for OneNote Android... it's usable (hardly a compliment) and the Sticky Note integration is pretty good.