Basically, I use it for Plex, some Netflix, retrogaming, and Steam.
I was in a similar boat to you were I looked at Plasma Big Screen, LibreElec, etc. Plasma BigScreen was too buggy or unmaintained. LibreElec is great if you want to play local stuff, but terrible for streaming things like Netflix. In the end I said “screw it. I’ll make my own”. Now it’s the center of my living room.