It is why I mentioned above that before activate 2FA, the 2FA codes should backup.
After backup, please remember to test the 2FA backup codes in assumed scenario in which you lost your phone, computer.
If those backup of 2FA works fine for you, it's time to start send money to your account.

A guide for someone who need .details to activate 2FA on Binance
https://coinsutra.com/google-authenticator-setup-guide/
And, more important step is never forget or too lazy and do not backup 2FA codes.
One more step, is after saving backup of 2FA, make sure that you test the backup to see it works for your account when you lost your phone or not.
If not, return to your Binance account profile, deactivate 2FA, then reactivate it and get new 2FA codes.
Then, reappyling those steps again till you see your 2FA backup codes work fine.