I have a ThinkCenter m710q Tiny as my server PC and Linux Mint worked out of the box for features of it. It’s pretty basic as far as hardware goes so any modern Linux distro should work fine.

To wipe Windows, you’ll need a bootable USB drive with a Linux iso burned to it. In the installation process you’ll be given either an option to wipe the existing drive or to manually wipe it and format it as a Linux friendly filesystem. Once that’s done you’ll be able to install fresh on the blank drive.

Yep, always opens back up to whatever I watched last.

Only had to do it once. I don’t exactly do a lot of browsing on the PS4 so it stays open to Jellyfin when I open the browser app. Usually just have to hit the back arrow to close out of whatever I watched last and then I’m back at the main menu/Jellyfin homepage or whatever you’d call it to choose the next thing to watch.

Jellyfin works fine on PS4, I use it all the time. Just have to open it in the browser.