Also my immediate thought is that the End of the track when it connects to the Start isnt doing it with derivatives and therefore looks not smooth/shockfree.

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

Just today I learned about Cinny which would make so much more sense to use for people who need the discord/slack experience but want to use matrix

Rock and Stone!