Mouse disappears when launching steam from desktop & on screen keyboard using steam keyboard doesn't function

Tried using the steam os steam client keyboard, it shows up but no input being detected, calso mouse disappears and seems to be broken once you launch steam in desktop mode.

No source files or tests are identified. Start by reproducing the issue when launching Steam in desktop mode, checking whether the mouse disappears and whether the Steam on-screen keyboard accepts input. Done means both the mouse and keyboard input function normally in that scenario.

Written by the indexing model from the issue text.