Too many challenges

Agreed 100%. I only played the recent free 7 day trial but it was crazy the number of challenges. I did it for a while and then realized they were ruining my enjoyment of 'just playing the game for fun'. So I stopped. The thing with challenges is, if the majority want to do it, they will and that will likely ruin the experience for everyone else - need a medic on your team, but there's an assault challenge - congratulations, you're in a team with 3 assaults and only you go medic. Good luck trying to find ammo...

I'm fine with team-based challenges, in BFV there were things like "complete 5 squad orders" or "as a squad, spot 100 enemies" - stuff that actually made you work together. I can't be bothered to check what million challenges you want me to complete. I'll just join a game and have some fun.

100% this.  It feels too much like Delta Force or something with all the stuff to track.  Simplify, please.

And don't force Battle Royale challenges down our throats and expect us to re-roll for stuff we're not interested in.

I agree, the whole challenge focus on BF6 right now is impacting the enjoyment of the game for me and a lot of my mates.
As apposed to playing and having fun, it's becoming a list of chores to sort through.
I can't imagine the amount of games thrown because people were hyper focusing on their challenges, and one really can't blame them for that with how specific these challenges get.
In previous titles you would unlock what you played with passively which was way more fun, play Assault? heres their gadgets, guns and tools.
This is a much better way of doing it instead of requiring hyper precise actions from your players, like "get kills at 125 meters."
This sort of thing forces playing in a way that isn't fun or challenging but more so a hastle and frustration, especially when it fences off getting a useful gadget for given roles.

Aswell as that, Challenges that force BF6 players into the REDSEC audience is not fun either. I get you're trying to keep the player base unified but using challenges as a drive doesn't work and isn't conducive to having fun with the game. The free trial week is much more effective of a measure and is welcome in the future, because you are giving those F2P players a chance to level their gear for when they return to BR or Gauntlet.