The other day I got a Mini PC to use as a home server (including as media server with Kodi).
It has 8GB of RAM, came with some Windows (10 or 11), didn't even try it and wiped it out, put Lubunto on it and a bunch of services along with Kodi.
Even though it's running X in order to have Kodi there and Firefox is open and everything, it's using slightly over 2GB of RAM.
I keep wanting to upgrade it to 16 GB, because, you know, I just like mucking about with hardware and there's the whole new toy feeling, but I look at the memory usage and just can't bring myself around to do it just for fun, as it would be a completelly useless upgrade and not even bright eyed uuh, shinny me can convince adult me to waste 60 bucks on something so utterly completelly useless.