I applaud the attempt, but this sounds much more annoying than regular 2FA. If it doesn't work, you'll have no idea why. With regular 2FA it didn't work becaus

I applaud the attempt, but this sounds much more annoying than regular 2FA. If it doesn't work, you'll have no idea why. With regular 2FA it didn't work because you typoed the code, and it's easy to fix that. Personally I don't find 2FA annoying at all. Most sites just have long-lived cookies so you only have to do 2FA on a new computer, or once every few months. AWS is the exception which requires you to 2FA every time you login, which is definitely annoying. They should fix that.