@ubuntumale I configured proton VPN without 'VPN editor' app, just with the option of VPN Configuration, in a Volla X Focal . It works.

@ubuntumale yubikey works for me on Volla phones, as said, it is recognized as a keyboard device at the end of the day so plug it when required and unplug right after

@ubuntumale said in Second/burner phone number on UT?: a second phone number With my operator, there is an option to have a second phone number on the same SIM for two euros per month. Maybe for you too ? eSIM Not currently supported by UT. It should but I don't know if there is any work in progress on this with focal.

Thanks everyone for your help! Android Flash Tool recognized it after I factory reset the phone again.