Note: This update is for the Steam Deck Preview channel, and includes new features that are still being tested. You can opt into this in Settings > System > System Update Channel.
Graphics and Performance
Reduced stutters when the upscale filter was set to FSR or NIS under high GPU load.
Fixed an issue regarding frame-pacing and stutter, especially affecting some external displays.
Fixed display sometimes getting stuck at 60Hz after returning from sleep on the Steam UI.
Fixed an issue where a core could be stuck at 100% CPU if a game's window closed in an unclean way.
Source: https://store.steampowered.com/news/app ... 9925005477