We have just shipped an updated Steam Deck Client to the Preview/Beta channel.
General
Fixed an issue where backing out of an app details page to the library tab would focus the wrong app
Fixed a rare Steam Play issue that caused the compatibility manager to incorrectly attempt to use the default Proton tool (configured via 'Run other titles with:') against another Proton tool.
Steam Input
Fixed an issue with trackpad momentum when the frame limiter is enabled
Fixed issue with Touch Menus created inside Virtual Menus page not accepting Mode Shift buttons in the new Multi Button Mode shift interface.