There can only be one winner every year.
These last 2 decades have been stacked with QB talent during Brady's time, right now, etc.
A lot of talent has gone through the QB position.
However, there still is only one winner though out of 32 other starting QB's and right now it's the Chiefs' time. Like Mahomes, Brady has stopped a lot of QB's from winning more rings or winning a single ring. Even the years dude didn't win the Super Bowl the Patriots knocked off some big names. I still honestly think Rivers/LT/Gates would have a ring if they didn't draw the Pats back in 06.
QB can do so much today and dominate a game like any other generation: dropping dots from the pocket, scrambling for yards, dropping dimes on the run, etc. However, it still takes a team to stay healthy, get stops (get to the other QB), catch the ball, protect the QB, make plays, etc. like it does every season.