The old system was even weirder, I had to use Libreoffice built-in QR code generator to set up 2FA, I created my second account after this latest update ( glad they added the QR code for me this time ), but yeah it didn’t work, so the account is lost until the next major update which will disable 2FA for everyone…
But I didn’t wait, I created another account and it worked 🤷♂️