Nah. My older 1080p stuff remains, but I just do 4k only now. Media server is powerful enough to transcode to 1080 on the fly for any device that can’t handle 4k, or for slower network conditions.

I use Linux Mint, mostly because I’m familiar with it. If I was to redo it, I would likely just run Debian.

I like SearXNG

Dunno if it’s been delisted since, but I installed it on all my Rokus and Roku TVs a few weeks back without issue.