Yeah I think this is just a check call bluff catch river. I agree utg will not be bluffing here and you dont beat anything utg would raise with so the re raise is a little to much IMO. Especially at this stage, when your both so deep.

Almost nobody is folding A3/22 there. On choosing bluffing spots, aim the weakest portion of opponents range.

You certainly need to put more money in before the river at this SPR. Leading flop, turn and river is completely fine specially when you don't have that many off suit 4x on your range, don't block his multi street calling region and you have tons of natural bluffs when he doesn't have any 4x. x/c flop and lead turn on a card that improves a lot of your flop x/c range also seems a better game plan.

make sense. ty

At the same time, I doubt his call is a ev+ call in the long run vs random players. I just feel like players gonna have full houses here almost everytime. Maybe im wrong