Steam Deck - SteamOS 3.5.9 Preview: Well Paced Edition - Steam News
https://store.steampowered.com/news/app/1675200/view/3870343609925005477Graphics 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.
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