SWF Perks Limitation!
Just an idea, when you're in a SWF lobby ready to join a public lobby, the game should limit same perks that will be used/abused against a killer before matchmaking.
For example, "Decisive Strike" is only allowed to use one time for a SWF lobby, which means among 2, 3 or 4 of them, only 1 person can use that. Other perks are 1 time-use only should be Borrow Time, Mettle of Man.
Not the same kind of 2 exhaustion perks per match (For example: 2 Dead-Hard maximum for a SWF lobby, when 2 people have already picked Dead-Hard, the other one can use exhaustion perks like Sprint Burst, Balance Landing, Adrenaline...).
Solo survivors are free to pick whatever they like.
This is quite similar to picking operators in R6.