Put it back to 3.4.11 for now by turning off the deck and holding the three dots button under right trackpad while turning on the deck and selecting the previous version. This is not a permanent change and it will revert to 3.5.5 the next time you reboot your steam deck unless you do the same again, hope this helps.
Try this:
https://www.youtube.com/watch?v=AN_-Bn1Elz4
Put it back to 3.4.11 for now by turning off the deck and holding the three dots button under right trackpad while turning on the deck and selecting the previous version. This is not a permanent change and it will revert to 3.5.5 the next time you reboot your steam deck unless you do the same again, hope this helps.