The Steam Client Beta has been updated with the following changes:
Steam Input
Fixed gyro anti-drift values being applied to some controllers unintentionally
Fixed PlayStations controllers that were opted out of Steam Input having the lightbar/gyro features enabled
Fixed anti-drift autocalibration tolerances not being applied when controller first connects
SIAPI: Fix for incorrect GetMotionData quaternion values
macOS
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Fixed "Add a Non-Steam Game" menu option not working
Note: This beta was re-released on Oct 31 with additional changes.
Source: https://store.steampowered.com/news/gro ... 7285706972