Some people need to figure out the difference between being annoyed by a gun and it’s mechanics and it being actually overpowered. Shotguns, currently, are new player friendly. They can produce kills in close quarters situations for players who might not have the best aim more quickly than most guns. But that event is somewhat rare. If it’s not rare for you then you aren’t as good of a player as you think you are.
Shotguns have crazy range issues so they are only good in close. And by good I mean comparable to pretty much every other weapon in the game. All of which have longer range. There is a reason why you don’t see players at the higher end ever using a shotgun. Range trumps short range burst every time.
Personally I think shotguns should have never been put in as a primary weapon. They are almost impossible to balance correctly due to the burst vs. range issue. There is rarely a happy medium or at least one that I’ve ever seen. Putting it as a secondary would fix a lot of that and also give us more secondary options.