QQ on 4bet pot

Difficult spot. This is a 4bet pot and it is quite likely one of villains have Ax hand. Imo BTN should bet his top pair pretty often when you check on the flop. I think your turn bet is ok. OTT when villain raises you have about 1/4 pot left so I think calling is not that bad. Villain might do this with draws sometimes.

I would make the 4b bigger. With this sizing you invite them all and we do not want mw pot.
Axx board is the board you will attack when you 4b...
If you decide to bet turn you can get smaller and fold vs a raise.

I would have x/f turn, because:
- multiway pot. Ax is likely.
- better hands will call or raise the bet. Worse hands will fold.
- no Ax will ever fold on this board.
- if i had AK as BU i would have played the same way. No need to bet flop at this dry board.
- you cannot rep an A anymore, since as preflop agressor you would have at least bet small otf with an A

Checking flop and check folding OTT would be quite weak and exploitable. If pre-flop aggressor checks 2 streets, villain should be stabbing with anything here. The best move in this hand is to bet the flop. When hero didn't do so I think he has to bet or at least x/c one street with this hand.

bet turn/fold is ok but sizing must be smaller around 1/4-1/3 pot (max) - its 4bet multipot

Betting flop is important.
As played, bet small turn and fold is right.

I am moving AI preflop. Making a pot-sweetener is senseless. Anything bigger is 40% of stacks.

As played, I'd just give up on the flop. Too crowed. The A works two ways, and vs 2, one of whom is liable to have any Ax, I'll not try to represent.

The turn bet can only be rewarded in two ways. Worse hands are folding or bluffing you out. They are not calling. Slowplayed better hands will raise. You could bet as a bluff stopper (betting hoping they fold worse hands), but that reason is not good enough alone for me.

Ohh. Good to get some backwind.
Now i´m really unsure with this spot. ^^