Has anyone gotten pushback from Steam Support regarding their RMA request for dead pixels?

I submitted my ticket with pictures. They finally got back to me 2 days later and asked me to continue using it for a few weeks and if it doesn’t magically get fixed (It’s a dead pixel, not a stuck pixel) then they’ll take my Steam Deck in to get fixed.

You’ll want to change the compatibility for Black Mesa.

In your Steam Library go to Black Mesa > hit the gear icon > select ‘Properties…’ > Compatibility > and check “Force the use of a specific Steam Play compatibility tool”

Either select Proton Experimental or Proton 8.0-4 (latest ver.)

After that you’re solid. I had no problems running the game on ‘High’ for the Earth levels. Performance took a hit from Xen to the end though, so may want to drop it down to ‘Medium’ after that.