Saw this in The Athletic regarding his Raiders minority ownership bid, thought it was worthwhile background when discussing this topic:
The NFL has already placed restrictions on Brady in his role as a Fox analyst, which Brady agreed to before the start of this season, according to a league source.
He’s not allowed access to other teams’ facilities and practices, nor can he attend broadcast production meetings, which usually include meetings with coaches and players ahead of games.
He’s also not allowed to publicly criticize officials or other teams and could be fined or suspended if the league feels he breaks that policy.
He also must abide by the league’s gambling and anti-tampering policies and is limited to “strictly social communication” with members of other teams.