In my experience, the non-garoto saunas in Brazil are very similar to the (fast-disappearing) gay bathhouses in the USA — which means, basically, it’s the normal Western gay male social pecking order. The very few really attractive men are there to hook up with the other very few really attractive men. Pudgy middle-aged guys, bears, fem twinks, and other more commonly moderately to less desirables ordinarily “stay in their lanes” and wind up with each other.
Not the case at the saunas with money boys — where cash rules everything around you. That’s the easiest and best shot for the average schmoe — who would ordinarily be overlooked by the 8s, 9s and 10s in sexually charged, physically important gay environments like bathhouses and circuit parties — to land an Adonis.