The updates to the beta channel are still coming thick and fast, here is the latest 3 days worth of updates bundled together
General
Small organization and clarity changes to notifications settings.
Fixed issue that could cause an error when entering a valid Steam Guard code.
Fixed rare achievement animation not appearing when Steam was not focused or hovered instead of just pausing.
Steam Input
Fixed some Nintendo Switch Pro controllers not being recognized after the last Steam update
Fixed Action Set Changed notification not appearing when changing an action set, for example when changing between gamepad and desktop sets on the desktop.
Desktop Mode
Screenshots Manager: Privacy dropdown selector for local screenshots will now remember the last selection.
Screenshots Manager: Clicking the large image in the right panel will now open a larger popup of the screenshot.
Fixed URL bar in popup/overlay browser sometimes being out of date.
Added battery indicator to the desktop overlay.
Fix a case where the overlay could have dpi scaling applied twice.
Fix login window having the wrong dimensions when dpi scaling is enabled.
Fix a case where menus could get clipped if dpi scaling is enabled.
Fix a case where disabling dpi scaling via settings wouldn't have any effect.
Fixed stability of blue focus bar at the top of various windows.
Fixed "When a screenshot is taken, display a notification" setting not being honored and "When a screenshot is taken, play a sound" only changing after the current game has exited.
Fixed window control positions on chat settings popups.
Fixed a bug viewing server info from server browser
Fixed a bug where connecting to server with password from server browser would not give you an opportunity to enter the password
In-Game Overlay
Fixed soft-lock when a game requests that asynchronous game notifications be enabled.