The Green Bay Packers have, at present, the best offense in history. No team is a particularly close second. Their 3.67 points scored per drive through their first four games not only leads football, but leads every offense that has ever played. The 2007 Patriots—long considered the gold standard for innovative, supercharged offenses—averaged about half a point less per drive. The 2020 Packers lead the NFL this season in points and yards per play. They are the first team in history to score 150 points and commit zero turnovers in their first four games. Aaron Rodgers has not even thrown a pass that could have been intercepted. Nothing is guaranteed to last—a quarter of a season is a small sample size—but the Packers being a great team is one of the few knowns so far in a season of unknowables.
https://www.theringer.com/nfl/2020/10/16/21518968/green-bay-packers-aaron-rodgers-matt-lafleur-nfc-north-trust-process