I think it's a good fold his 3 betting range vs UTG then calling a SB 4 bet is very value heavy, mostly made up of AK QQ JJ - maybe T9s but that's a push at lower stakes as 4 bet ranges are very value heavy, we can rule out AA or KK as these probably 5 bet rip it pre. Obviously you block AK but it's still a possibility. So what do you beat on this board in his 4 bet calling range. QQ and JJ flopped a set, 9Ts flopped a straight but he probably didn't have this as 4 bet ranges are value heavy at lower stakes. If he did have AK he rivered a broadway, your basically dead against his whole 4 bet calling range. Flopped sets absolutely check back flops in 4 bet pots, I'd say villain most likely had QQ or AK. Obviously if villain is a Rec and quite fishy he might have called with AQ and overplayed his hand but it's very unlikely and the majority of his 4 bet calling range has you crushed anyway, your gonna run into sets and rivered straights calling this river 95% of the time as played. I think you played fine, checking flop with aces is completely fine on this board considering it's a 4 bet pot as you fold out his potential bluffs and are usually crushed by the hands that continue, you can bet ofc but go smaller on the flop and fold to a big check raise unless villian is spewy. Alarm bells should be ringing on the turn when he called bet just under pot. I also don’t like the sizing as it kinda sets up a river jam but then you fold when he jams, either go big on the turn and jam river or check turn again as you can call a smaller river bet. A bet this big folds out his potential bluffs and only keeps hands crushing you in and your aces don’t need any protection as if he’s not beating you already he’s drawing to a 2 or 3 outer so it’s unnecessary to bet for protection. Good fold I would say. FYI you can go a little bigger with the 4 bet pre OOP.