Note: This update is for the Steam Deck Beta and Preview channels, and includes new features that are still being tested. You can opt into this in Settings > System > System Update Channel.
The Steam Client Beta has been updated with the following changes:
Steam Input
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Fix default orientation for Steam Deck and Steam Link Mobile App controllers in the new Gyro To Mouse mode
Source: https://store.steampowered.com/news/app ... 4870616550