More info here:
https://www.espn.com/nfl/story/_/id/32542413/green-bay-packers-qb-aaron-rodgers-tests-positive-covid-19-source-says
"Rodgers petitioned the NFL to have an alternate treatment that he underwent before he returned to the Packers that would allow him to be considered the same as someone who received one of the approved vaccinations, sources told ESPN. After a lengthy back and forth, the league ruled that Rodgers would not get the same consideration and would be considered unvaccinated.
Sources said Rodgers follows masking protocols while interacting with players and coaches inside the team's headquarters at Lambeau Field. However, Rodgers does not wear a mask while in the media auditorium during his weekly and postgame press conferences. The Packers have put other unvaccinated players on Zoom instead of in-person media sessions."
So everyone knew, and Rodgers appears to have broken some of the protocols.