KJs flush, facing river all in

With second nuts, you sometimes have to call. How often is a pure math thing. No play is a mistake OTR. (You could of course also guess what villain has. That part is up to you:))

I do not think that sets, 98 are xb turn here. Even fish knows he should bet here.
His play is like a FD and it could be a nut one...
I prefer folding but calling from time to time is not a mistake.

Its huge overbet too, if pot was bigger i might consider calling.

A set wont stall on the turn, a set is hoping to protect against draws. So a flush is more likely. I wont bother you with the math here but you always have to ask yourself: would they raise all in with 3rd nuts or less? If yes then call. Maybe im too tight/or have been playing too much plo, but I am always so curious what they think my 2/3rd donking range is on the river (or maybe they dont think) and then I am always inclined to think that lower flushes would just call and thus it must be the higher flush; but perhaps yohanN7 is right and sometimes you just have to call and then you see like Qhi flush or something as well; of course there exist more lower flushes than flushes that beatt you but the question is again would he (value)raise (all-in) with the lower ones.

Sets are most likelly cbetting the turn, trips and flushes are probably not shoving the river. So, his play is a bit ackward for me, hard to estimate what he has. I believe folding would generally be better because not many will bluff the river that way.

I agree that sets would bet OTT and trips or worse won't shove OTR. Villain has most likely a flush, we don't have the nut flush so folding is ok. Sometimes we have to call here but since the pot size is so small compared to villains raise, I think we can play it safe and fold.

I have fold in these situations and would do it again here. versus villain's bet I think we cannot make up for the loss but if we need to be good not too often then for sure it is a call with a second nut flush.

In this spot I would probably also fold to the overshove here will be like calling 82 effectively to win 209.2 or something then you have to be right 39% of the time thats still a lot.