I have been told, that if I connect ms account with active game pass to riot account, I'll receive Sage buddy, XP boost and all agents. I did get the buddy although other perks are nowhere in sight. Could anyone explain?

Can someone explain how an iron account that can top frag in ascendant/immortal games still manage to remain iron? Genuinely curious as I thought Smurf detection would occur and the account would jump rank due to overachieving in performanc...