In an amazingly sassily titled update, Valve has fixed the color saturation and fan control problems introduced by The OLED Update yesterday.
https://www.steamdeck.com/en/news
NOV 14, 2023
SteamOS 3.5.3 Preview: The LCD Update
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.
- Fixed a regression with color management sliders
- Fixed a fan control regression
The fan isn’t as bad as the OLED update, but I find it still kicks in at times when it never used to
If you play in Desktop mode this may be caused by KDE services, such as the Search Indexer.
Don’t play in desktop mode unless you know what it clearly involves in the background