The Steam Deck Beta Client Update for July 30th introduces a number of features, but the top feature and the biggest change we've seen from Valve in a long time (in our opinion) is the ability to see which of your friends are actually playing a game on the Steam Deck!
The official Steam Deck X (Twitter) account posted a picture showing how this will look also
If you have the Steam Beta client on the PC, a Steam Deck icon shows next to your profile pic if you are also online on the Steam Deck, and it shows the text "on Steam Deck" when you hover over the image.
On the Steam Deck profile page and friends list this now shows the same.
The Beta channel also got updates for Game Recording and you can see the main highlights below!
General
The friends list will now show a Steam Deck icon, instead of a gamepad icon, if the other user is playing on a Steam Deck
Replaced the friends list VR icon with a new graphic that also matches the in-game or online friend state color
Fixed a few spots where tooltips were causing unexpected word wrap
Game Recording Beta
Fixed instances of failing to capture video data after multiple game launches.
Fixed cropped video capture when an external display is connected or disconnected after startup.
Recordings & Screenshots
Fixed error that could happen when opening the Recordings & Screenshots dialog before necessary data had loaded in
Added support for "Send to Phone" share option to screenshots