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

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

NoMachine has Android and Windows clients.

I use NoMachine between windows and Linux and I’m happy with it. According to their site they support MacOS.

I also try and ignore energy costs and prevent ewaste: my home server is my three builds back gaming PC with a lower power GPU shoved into it. Whenever I build a new main gaming PC my old one becomes my wife’s gaming PC, and her old PC is rebuilt into the home server.