Ive yet to have any of the issues you mention with your install of jellyfin; I think its time you hone in on your basic OS/software knowledge as most of your issues seem to stem from lack of knowledge on your part. RTFM much ?

I've been using Jellyfin for years and am quite happy. Not really using it myself, but let people in my family use it. Back when I decided I went with it since I wanted to have multiple users.

It's nice that it supports not only video and music, but also pictures and ebooks.

Though, I had it a lot easier installing, since I just used docker, so I was done setting everything up in ten minutes.