They recently recieved a “Blauer Engel” certificate for nextcloud-server. Iirc that seal requires the user to be able to choose what he wants. So new features are OK but they have to be optional. That certificate is handed out by a german government Institution. And very recently they started handing it out to software too, with nextcloud beeing the first BIG reciever.

And I heard that if you self host you can use the premium features for free

Agreed, me to! And I use syncthing to sync my database between my devices Edit: mine is called KeePassDX but its the same database file