When the update launched into Preview, Valve only noted the GPU fix was for "an upcoming game". Now Steam Deck OS 3.4.9 is Stable with the changelog noted as:
- Fixed a GPU driver crash with Starfield
- Fixed hangs on reboot when switching from upcoming Beta OS releases.
I will have a very rough quick first-look as soon as Starfield is installed and ready on my Steam Deck. Stay tuned on that one (follow on YouTube), I'm not expecting performance to be particularly good though for now. As we've seen with many AAA launches, they generally work better (and in many cases fully Steam Deck Verified) a few weeks after release.
Nice to see Valve get ahead of this one though, good to see such prompt updates for the Steam Deck!
For players who pre-purchased the special deluxe edition, early access for Starfield has now begun, with the full release on September 6th.
Update: Valve developer Pierre-Loup Griffais mentioned:
There is a known issue with Starfield where the initial window waits on a black screen. You can tap it with the touchscreen to progress past it, and we are releasing another OS update with a fix within the next hour.
Update #2: Steam Deck OS 3.4.10 has rolled out for the extra fix "where Starfield could become stuck on a black screen while launching, waiting for touchscreen interaction."