There are probably not a lot of people in my case but installed the 3.5.5 update and I don’t like at all the new screen colour management. Before the update I was using Vibrant Deck and each games had a different configuration and the image looked better and sharper in my opinion. I may be wrong but the saturation in 3.5.5 is different from the saturation using Vibrant Deck.
So I downgraded to 3.4.11, by restarting the Steam Deck and pressing Power Button + three dots button. It worked and I could see the difference instantly. The only (big) problem is that when I restart the Deck, the 3.5.5 update installed again. I tried a few times, and I tried to switch to the beta channel and then to the stable channel again but it didn’t work. It always go back to 3.5.5 after a restart.
I think this is because the update files are still in the Deck somewhere and at startup the Deck detect them and install the update. Is there a way to avoid this update to be able to stay in 3.4.11 ?