The jerseys have been announced for the Bills - Texans game as well as the 49ers - Bills game.
https://www.gridiron-uniforms.com/GUD/controller/controller.php?action=teams-season&team_id=BUF&year=2024
It wasn't last year, and I doubt it will be this year. The hype with them is through the roof. If the Jets are playing well then it won't be 40% as Jets fans will not want to sell their tickets.
One advantage the Bills may have in this week 6 matchup at MetLife is the Jets play the Vikings in London in week 5. They could be jet lagged as well as trying to adjust to the time difference while preparing for the Bills.