[converted_hand][hand_history]Poker Stars, $0.01/$0.02 No Limit Hold'em Cash, 6 Players
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SB: $2.73 (136.5 bb)
BB: $2.03 (101.5 bb)
UTG: $2 (100 bb)
Hero (MP): $3.44 (172 bb)
CO: $8.49 (424.5 bb)
BTN: $3.21 (160.5 bb)

Preflop: Hero is MP with J J
UTG raises to $0.06, Hero raises to $0.18, 3 folds, BB calls $0.16, UTG calls $0.12

Flop: ($0.55) Q A T (3 players)
BB checks, UTG checks, Hero checks

Turn: ($0.55) 3 (3 players)
BB checks, UTG checks, Hero checks

River: ($0.55) K (3 players)
BB checks, UTG bets $0.44, Hero calls $0.44, BB folds

Villains are unknown. Flop is default with this hand i guess, i will bet here some GS+Pair with bdfd & made strong hands. I didn't want to bet this turn after they checked OTF, they still have a lot of Ax, Qx + combo draws, so i just want to realise my equity IP. OTR UTG bets big on 4 straight board when backdoor flush got there. I'm not sure with my call. I guess it's very hard to fold this hand here since idk villains and it could be crazy move. From another side population aren't bluffing that much, so if i call it's gonna be chop or i lose vs bd flush. Guys should i fold OTR? perhaps there are other option in flop/turn that i don't see?

Wp

It's pretty hard for the villain to have a flush (QJss and JTs are about the only flushes I'd ever expect to see, and that would be from the BB, not UTG), so the river is a snap call for me. Mark villain as a fish.

Could you please explain, why you don't expect to see those combos from UTG?

good play no reason to fold river

Good players don't play dominated hands in multiway pots. If you have something like QJs (or even AQ) 3-ways in a 3-bet pot, it's highly unlikely that making top pair will be a profitable proposition. Ideally, you need to make a set or the nut flush to win multiway, because making the second best hand is incredibly costly.
e.g. QJs only has 26% equity vs AK and JJ (two hands that the other players often have), but QJs connects on the same sort of boards, so it gets stacked pretty often. In a multiway pot, you need to a win about a third of the time, but very few hands have >33.3% equity multiway. As an aside, if 3 players see a flop with AKo, JJ and QJs, it's actually AK that is the favourite (with over 40% equity).