There's been an update to the Steam Deck Client Beta/Preview Channel. These are the changes that this update provides.
General
Fixed creation of erroneous steamwebhelper processes when steamwebhelper crashes
Fixed on-screen text input to show the game in the background.
Fixed EULA dialog extending off the screen
Fixed friends list not showing which friend was selected
Desktop Mode
Fixed user avatar in title bar momentarily switching back to default during startup.