Remote play was almost unplayable for me on the LED steam deck, but with the wifi6E improvements my streams are now playable, but there’s still some artifacting and freezes (gets resolved by turning “use per-game profile” on and off)
What would be the best 3rd party software for my gpu?
Have you tried playing around with remote play settings both on the host PC and the deck? I had some issues with it myself, even when on 5G wifi that is on the same LAN as the host, which is connected by wire, until I did some tinkering.
Enable hardware encoding, and HEVC codec, on the host.
On the deck, enable HEVC, but keep the hardware decoding disabled, and limit the client resolution to Deck’s screen (1280x800) and limit the max FPS to 60, and keep bandwidth limit to auto.
But If you are dead certain that you want to use the 3rd party streaming, Moonlight client on the Deck + Sunshine server on the host seems to be the most popular option to go for, as Sunshine supports both AMD and Nvidia cards