The Exigent Duality
Steam Army Knife - 15:25 CST, 3/02/24 (Sniper)
I got my PlayStation 5 "Remote Play" streaming to my Steam Deck OLED via "chiaki4deck", with HDR support! I didn't test extensively, but superficially compression artifacts are negligible-to-non-existent, as is latency.

I followed the instructions here and had it working in no time-- absolutely painless. I did notice the camera swinging when I was walking around the house, undoubtedly because the 802.11 signal was going bonkers-- but as long as I sat in one place, things seemed totally solid.