Looks more like a stuck pixel than a dead pixel… have you tried going to YouTube searching up a stuck pixel video that flashes colors quickly [seizure warning] and rubbing the stuck pixel with your fingernail/tooth pick while it’s going?

Weird. What are your streaming settings on deck/pc?. Are you using steam to stream or moonlight/sunshine?

I personally just use the steam stream feature and it works perfectly.

I get about 3 hrs locked at 30fps.