I use joplin with joplin server running through a reverse proxy in a docker container. I love it. It also supports encryption, so you could use a more convenient service like Google drive and still be assured of your privacy.
Tidal has no official Linux app, which is shocking considering their demographic. But a hero has made an app that gets pretty close. Under the hood it's the web client with some add-ons to support full quality streaming. The user experience is generally fairly close to an official app.
I used soundiiz to convert all my content over, and of probably over 10,000 songs there were less than 100 unavailable, so library isn't a concern. The increased quality is nice, but the big reason I choose tidal is that instead of doing unnecessary stuff like podcasts they pay artists better. As much as 3X according to some things I've read. I have not verified those numbers.
I use joplin with joplin server running through a reverse proxy in a docker container. I love it. It also supports encryption, so you could use a more convenient service like Google drive and still be assured of your privacy.