Everyone's simultaneously 0-0 and a Superb Owl contender.
Yep, it's the preseason.
Here's the schedule (source; dates for each team are here)
May 24 to June 18: OTAs and mandatory minicamps
July 15: Long-term extension deadline for franchise-tagged players
22 days before the preseason: Training camp
(That's 22 days before a team's first preseason game, that is, and it's only for rookies. Veterans report a week later -- that is, 15 days before a team's first preseason game.)
Aug. 5: 2021 NFL Hall of Fame Game: Cowboys vs Steelers.
... HoF classes of 2020 and 2021 will be inducted
Sept. 4: Rosters must be reduced to 53 players
Sept. 5: Practice squads can be assembled
Sept. 9 (Thursday): Cowboys at Bucs to start the 2021 season