Many skill requiring coop/multiplayer games use SBMM.
It's mostly created by adding 'rank system', of course there are some games that are not based on this, but I think, that for people, SBMM would be great.
I know that people improve by playing against better players, but they shouldn't from the start.
I dont know limitations of Unity, nor it's function with steam, but i would make it based on 'played hours' or 'escape rate' for kids or 'catch rate' for Neighbor.
Of course, this suggestion went mostly from Dead by Daylight, and it would be best, if we would stay original.
But i think that players should (at least new players) start playing against new players too...
Sorry for my english, im not from english speaking country ❤️
See you in the basement 
