I’ve been using Sunshine for Linux with Moonlight on my AVP and that works great. The native Moonlight port for AVP is still very much a buggy, crashy WIP, but the iPad version is a decent enough standby.
Honestly, using virtual Mac Display on AVP is so, so, so good, that I want that functionality everywhere… from any and all of my devices. Sunshine + Moonlight is currently the most promising path forward, IMO.
I assume these folks implemented their own AR stack, so the Linux world would indeed to win much with them being here, other than convincing people to use Linux in general.