I think we need to make a distinction here; FMV is only a thing for related party transactions, anything which isn’t related party would be deemed FMV by default.
So, although Fabinho was an overpay in my opinion, in actuality he went for his actual value which was what some mug was willing to pay.
For ASM, his transfer with obviously influence by FMV, but with that being said, we didn’t get any better offers.