Online
Interesting. There’s only 32 starting quarterbacks. There’s over 1,500 other NFL roster spots. NFLPA might just decide this is good “most” players.
That's not how the NFLPA thinks. The answer to them will be to raise the entire cap, not cap the amount QBs can make.
And, I'll note that the top WRs are now making what the top QBs made 5 or so years ago so putting a limit on QBs isn't going to change anything because all positions will eventually rise to a level seen as "just too much". Except it isn't too much because the NFL is making that much money.