Development of that has stopped, they are currently working on a new fork called Tubular, which has the additional option of being able to login with a YT account.
Newpipe itself is also currently deciding on whether to do a complete rewrite or not, so the coming months might be a bit slow in terms of new features.
I’d love it if Signal officially supported UnifiedPush, it seems to be the most promising direct alternative to FCM. They started talking about quantum-resistant encryption or whatever, but at the same time resorted to using a websocket.
Which is pretty much the least elegant way of doing it. Not something I’d expect from them, to be honest.
Then there’s Tuta Mail, they have a much better way of handling push notifications, but it’s still their own thing too, and instead of promoting something like UnifiedPush, they write blogposts dragging Protonmail for not having an alternative.
(Which I’m also annoyed by, but their posts about it seemed a bit pretentious, which I just hate to see.)
GrapheneOS seems to be the all out best, from what I can tell. It’s just that their strict requirements needed to achieve this level of privacy and especially security severly limit the selection of devices you can use, which is a bummer.
I am actually using a degoogled phone, and the only thing I’m missing are push notifications, for one single app. Everything else I use works just fine for me, but as always, ymmv
The only reason it’s like that is because devices come preinstalled with Windows. I would love if we had the Linux option that makes the device cost less