ZOOM: QQ in BB: minopen from CO, 3b from SB, 4b jam from CO

It seems against "unknown" I am not giving enough credit also
Open shove like this is likely AA ?

Just cold4bet get it in. Don't ever cold 4bet/fold QQ - either get it in or fold it. Coldcalling here is a mistake imo but you can probably get away with it. I just think it gets you into some shitty spots really. Are you flatting here hoping to setmine or what? Because if not, are you stationing down with your overpair? You're also OOP on the flop and if there is an overcard you will probably have a very hard time unless you really do just play it fit or fold. So imo keep life simple and get it in preflop without coldcalling that 3bet.

As played I really don't know, probably just a fold. If you didn't think it was good enough to cold4bet/call then it makes no difference now that he ships over you, just makes you more happy about folding.

EV-wise it's probably never a mistake to cold 4bet-get it in preflop. On the other hand when you coldcall the 3bet and see a flop you will probably be making many many EV mistakes i.e. calling too far or folding too early, thin valuebetting into traps etc etc it's just not that great.

4 bet fold is not good with QQ. Your hand is decent to 4bet/call and a bit strong to just call and play OOP in a sandwich.
As played after the shove you can fold.

Without opening the spoiler I bet that you have called:D

Correct play here is fold to the push imo. Cold 4 bet seems better to me also.

Fold this one, not too tough.

I think we can't cold call with any hand in this situation. So, we just 4bet, either for value or as a bluff. With QQ, without any info on villains, I think that QQ is a clear 4bet for value.

The thing you should keep in mind is that AK and QQ profit from a combination of pot equity and fold equity. Take any of those two in isolation and QQ/AK are probably not +EV to get it in. But combined it is fine.