You could try Linux Mint Debian Edition (LMDE) it has timeshift installed in the live iso, useful to restore a system when it’s unbootable. Anyway it doesn’t come with KDE but Cinnamon or XFCE.
For me Debian or LMDE is good for a home server due to not continuous package update, just major security an important ones.
For a Deskop or laptop in my opinion Fedora KDE or Gnome is the best experience.
May I ask what you’re using? Which distro?
I think the best approach is: search, try and stick with games you enjoy the most 🙂
Stability and configuration options. I already used Jellyfin but for me is not stable. It often crashes and configuration options are a mess at the moment.
Considering that I’m using Emby (selfhost), it’s able to manage my music collection too and I can play the music from the web player exposed by it.
If I well understood you, what you want is Debian with a great intaller. Don’t search anymore, there is the great Spiral Linux! Enjoy it.