QJs turn and river decision

I would call OTT, fold OTR, from my experience, bets OTR are mostly for value.

MP2 27.03% 21.62% 5.41% QsJs
MP3 72.97% 67.57% 5.41% QQ-TT, AKs, QTs+, JTs, 98s, AKo, QTo+

I don't see bluffs in his range. Either he has better value hands or weaker value hands that play this way. I think he doesn't have even that many weaker value hands that I put in the range above.. So it looks like a fold to me.

Why do you 3b him with this hand preflop? I do not like it, especially when you both are a little bit deep.
River is a fold. He has AK most of the time when he wakes up and starts betting.

I play mixed strategy pre with this hand. I think 3betting is not that bad.. CO opens wide and that has some blockers + it is suited connector. Although when we are deep maybe it should be a call.

You can 3b this hand if you have info that CO calls much vs 3b. In this hand he is practically unknown.

We can also 3bet this hand if we have info that villain folds too much vs 3bets.
I guess it is a population tendency at these stakes that ppl fold too much. If he doesn't fold too much there is a chance he is calling too much. So from that we can conclude that it is not bad to use mixed strategy even vs unknown

I think 3betting preflop is totally fine. In practice, we shouldn't 3bet those hand only in cases when villain 4bets alot (like 6+% in this particular situation). If he folds too much, we will win alot of pots preflop and if he calls too much, we will win alot of pots postflop because of our positional advantage (ofcourse, it depends on our and villain's skill). As played, I agree that we can call the turn and fold the river. It looks like he has a better hand OTR.

3b this when deep is not ok vs this villain. You build a big pot with a hand that will give you a draw most of the time.

Villain is unknown and I think it is ok to 3bet this hand vs unknown because of the reasons Alleen said above.
We are not deep enough to say that 3betting is not fine because we are deep.

i think that oppo 4bet call pre with QQ and AK co vs bu oop, but 134x he can also call preflop, flop with your hand you can also check sometimes, as played you have all AK and TT QQ JJ for difense this river you can fold, he has few bluff