MFA 2FA help to fix k-9 for Gmail

I can no longer get email. I turned off MFA and it worked for a hot minute. Then I got a new S21 and can’t get email. I tried older app versions with no luck. Any suggestions?

Are you using an app password? See: Less secure apps & your Google Account - Google Account Help. That is required for access to gmail from K9, or any other mail client that doesn’t support OAuth2.