My Quest2 version is currently v18.104.22.168, and it will flash back to the homepage after connecting to the PC. Even if you enter the home interface of the PC, the controller cannot be used.
The PC version is v22.214.171.124.502.
It was fine before upgrading to v30.
Ahh sorry, I thought it was from the recent debacle with the latest AMD drivers.
You could try reverting to an older set of drivers for your GPU. Otherwise, a tedious reinstall of the app and all the software? If you go that route, after you uninstall the app just make sure to delete the remaining Oculus folders in, C:/Program Files, ProgramData and the three Oculus folders in C:/Users/ (windowsusername) /AppData.