I’ve played around a bit with Remotely (https://github.com/immense/Remotely) from what I’ve seen it’s great for when a family member needs some remote support, it also has persistent agents for some stuff. Personally for remote administration I LOVE Apache Guacamole, it’s super handy being able to use RDP/SSH/vnc/etc from a browser.
Edit: after reading the post it may not be what you’re looking for. I don’t think either of those would be good from an FPS standpoint.
Huge steam library, RTX 3060, currently playing either 7D2D, or vanilla WOW over on Warmane (excited for the upcoming move to TBC which is around 17 years old or so).