Previously, you long-pressed on those six digits in the account list to copy to your clipboard.
With last week’s Google Authenticator update, a simple tap is how you copy those codes. (That being said, we’ve noticed that a long-press sometimes still works in version 7.0, but it’s inconsistent and the single tap is clearly the intended behavior.) A single touch is definitely simpler, but users have to adjust to this.
Google Auth and Authy lock you in, consider migrating to Aegis or Ente Auth.