I have tried the new beta driver with said commit and GE-Proton8.14 and get a steady 30 fps in 2k on Ultra settings and a 3070 Ti on the laptop with FSR2 on (20 fps in New Atlantis). The GPU know goes beyond the 60 Watts border and sometimes up till 125 Watts, so something happened. The tension from the CPU seems to be gone.
Short test on YouTube: https://youtu.be/nyWN1bcPgYc