Valve has just pushed out a new Steam Deck Client Beta update that focuses on making the on-screen keyboard more responsive, as well as a couple miscellaneous fixes for Steam Input and Remote Play:

General

• Improved the responsiveness of On-Screen Keyboard
• Fixed missing keystrokes when touch typing on the On-Screen Keyboard in desktop mode
• Fixed the in-game On-Screen Keyboard text entry dialog sometimes having buttons cut off

Steam Input

• Fixed issue where command settings would not save
• Fixed an issue where Mouse Edge Spin would be more sensitive on the left-side of the trackpad than the right

Remote Play

• Fixed crashing issue when streaming from one Steam Deck to another

You can view the changelog and discussion over on Steam.