I like Filen. German, simple UI, easy to use, 10 GB free storage.
@p_kanarinac
Do you know more about filen? Is this some standard protocol? Is everything open-source or just the clients? Does it have a solid userbase?
It's tempting to try their free tier, but if the company disappears half a way into the future, it's not worth the effort.
I use Seafile with paid hosting, Snycthing, and nextcloud. I'm tempted to try Ente for photos....
Honestly, this is past my expertise, I just know I like it. :) But I make sure to store stuff on physical media as well, I don’t trust any service that much.