[PLO5] AA SS - mw in T44 board

Not sure about preflop but yeah my range would be something like AAxx, ok broadway hands and some good rundowns.

Postflop is well played and you shouldn't fold to 1bb bet. Hitting A will be practical nuts. But I think just checking flop is good in 4way as likelihood of 4xxx+ is high. Maybe betting like 1/3 of pot could make sense.as alternative. But would require checking how often villains have 4xxx+.

Preflop is good, in this spot you want to 3bet your strongest hands like aces, few unpaired single-suited Ace high + high card hands (AQT9ss etc), quite a few unpaired doublesuited Ahigh hands, and also a lot of unpaired doublesuited connected hands that want to get rid of the limpers and isolate this spot to being BvB because these hands are not calibrated for multi-way spot and would rather take it HU. As for % I guess somewhere around 10-12% is good vs a reasonable SB opening range (~35%) but vs this very weak looking minraise you could go much wider in hopes that limpers fold and you take it HU vs a weak and wide range in position.
In most scenarios where you are the 3betor and the flop is low, disconnected, rainbow paired board (like T44, 722, 833 etc) you are going to have a nice equity advantage that allows you to cbet nearly all of your range for a small sizing even 3way. Because of the nature of the board and ranges involved your opponents wont hit it often enough to discourage you from betting the flop. Solver solutions also show that because we supposed to bet so often we are not able to bet/fold many aces in case we do get raised. If we only stack-off with trips and better when we get raised we are overfolding tremendously and good villains can start exploiting that fact and turn all kinds of hands into semi bluffs to make us fold. For that reason in the equilibrium aces wont be bet/folded especially the ones that somehow block the pairing card or have additional equity so AA52 is a very good hand to bet/get it in on T44 because the 5 and 2 blocks the 4 a little bit and also has enough backdoor potential.
The actual hand is way different however. There are limp/callers involved and their preflop ranges is probably like 80%+. These guys will have a much easier time hitting trips and better than the "good", defined solver preflop ranges. I would still go for a small cbet on the flop to not allow them draw to their hands for free but be ready to fold vs much aggression on later streets because these players wont be able to come up with enough bluffs and usually will play too passive and straight forward. As played I dont mind X/C twice to hope for a free showdown and folding on the river is completely fine.

I think flatting pre is an option depending on how wide you want to 3bet pre. I'm definitely 3-betting at least all premium hands.

I would bet the flop as it is likely you are ahead and those minbet/call/call.. show weakness. You can win the pot instantly, get value and you dont want to give freecards. A raise to 10-15 bb should do the job. If you are getting reraised or floated, it is likely someone has a fullhouse or trips and you are going to give up on your hand.

On the turn we have the same reasons to bet like on the flop, this time it is even worse to just call a minbet, we miss to protect our hand vs draws and worse hands that might call a single bet and after all, we are still likely to be ahead as nobody showed aggression so far.

River is fold.