NL100 QQ deep vs cold4bet

Hey,

What do you think his range is preflop for this cold 4bet?

This deep I think it's polarized, KK+, and some blockerhands turned into bluff, like AQs/KJs, but I am unsure how many combos of bluffs his range could contain... Also I have no idea how far he would go with barreling, that's why I chose the 'safe' option to fold turn.

How do you think he's playing AK/AQ in this spot facing a raise and a 3bet? Aka does he have a calling range in this spot?

I would have a calling range in his shoes. Even though it's BTN vs UTG, but I am 3betting a midstacker reg, so my valuerange could be wider, like 99+/AQ+, or smtng like that, so he could have a profitable call with AK/AQs for example, and with cold4betting them this deep he could isolate himself vs a stronger range (without dynamics between us, which we didnt have). But I dont know how he does think about the situation.

Okay,

if you think his cold 4bet-range is pretty much exlusively KK+ then even just folding flop isn't too bad. I would generally expect people to have AK/AQ also in their cold 4bet range and hence i would also call the turn bet. If I had no info on villain, i would call flop and call again on this turn. Usually i wouldn't be folding on river either.