You assume that because you were not able to overcome whatever error/s you encountered with Google Auth and Authy, that you were being forced to use MS Authenticator.
Pretty uncharitable interpretation on your end. I am a developer and went to the extent of verifying the content of the QR code and the optional URL for manually adding it. No OTP code in there.
I truly did not mean to come off as rude. The 'content of the QR code' would've revealed the actual seed and so would corroborate your assumption if you did, in fact, verify as much. I merey stated a troubleshooting fact. No offense intended.
My bad for misunderstanding the tone of your comment. I likely wouldn't have gone off in this direction if you asked me what measures I took to check the OTP code in a collaborative/constructive way rather than expressing doubt they way you did. Either way, all good.