NL4 straight + flush draw

Villain can have 6x in his range and if you believe you are splitting atm I think there is no reason to pump the pot since it will only increase rake. If you hit your flush OTR and villain has a straight he will not fold it, you will get it all in.

Agree, don't raise that turn, you can wait to push if you hit the flush on the river.

Well, I will keep on saying that when you are on "the idiot" end of the straight, you should be carefull.
No need to raise and make pot bigger. Just call and see if you will improve.

And what if villain bets strong OTR and we don´t get our flush? Could you fold straight against a fish?

Hello, cool hand you posted here.

I think pre, everything is fine. Postflop I would do some adaptions to Villains range and your specific hand strength.

You simply have enough showdown value to checkback the flop, call a bet, and then check it down vs villain. Therefore I don't see a reason to cbet. But well..

As played, there is really no need to raise his donk, you maximally (!) get the money in with a chop / vs Ax-Straight. Just call and see a river, try to hit the flush, and then re-decide on what to do.

Villain is a weak player, he can have a lot of better straights in his range, therefore you kinda have to play this passively.

To your question:

I would definitely consider folding the river if he bets big / shoves

Thanks. I couldn´t imagine he had 6x, therefore I thought I beat him (some overpairs) or we are splitting - but I have the flush draw so I simply went AI. Even when I think about it now, I can´t understand it... I mean, it´s so fucked up, how can he call 3 bet with 76o ♦. Probably never really rely on reasonable thinking when fighting fish ♦

Well it is perfectly ok to call and make a note some of the time.