ColdBrew

Note: This update is for the Steam Deck Beta and Preview channels, and includes new features that are still being tested. You can opt into this in Settings > System > System Update Channel.
The Steam Client Beta has been updated with the following changes:

Desktop Mode

• Added In-Game setting to allow enabling or disabling display scaling in the overlay.

• Changed behavior of overlay tabbed browser to clear all tabs when the close button is clicked and added a minimize button to hide the browser as the close button previously did.

Source: https://store.steampowered.com/news/app ... 3022095825