The ranked ladder
The devs really need to take a look at how their ranked system works. Having a system that pools so many people into the cusp of platinum rank is bad enough, but having the literal best players in the world be the same rank as someone who is #4,626 on the leader board is insane. I scrolled through for like ten minutes, and the first gold ranks I found were below #4,630.
Unlocks
The devs also need to change how unlocks you get in between matches work. They shouldn't be appearing in between matches in a set, purely because the player is trying to play the game, not look at unlocked cosmetics. It should be saved for after the set is done or the player returns to the main menu. There have been so many times where I've had to mash the a button through cosmetic unlocks because I want to rematch someone.