Remote play is already semi-broken on stable. In the sense that the video renders super dark unless you disable hardware decoding.
https://github.com/ValveSoftware/SteamOS/issues/1246
The beta and preview channels are even worse. The remote play session will just never load at all.
https://steamcommunity.com/app/1675200/discussions/1/3757725080156008363/?l=czech
https://github.com/ValveSoftware/steam-for-linux/issues/10461
It seems like this is slipping through the cracks. I’m making this post to raise some awareness on the issue. Not sure what we can really do though.
Edit: God damn it valve.
Yeah it used to work really great. Almost flawlessly.
I’m using moonlight now and it works really well once you have it set up. Still really hoping this doesn’t make it into stable though.