I'm definitely not betting out here, do you want the villian to fold or call you?

I would be check/calling in this spot to let the villian continue with all his bluffs.
I would have ended up x/r the turn and definitely not folding so it is a cooler. But check and let the original raiser continue on the flop.
If he calls or raises your flop bet what do you do? And if you didn't hit a 6 on the turn were you just folding or betting again?
You want to get the max value possible from each hand. Betting out here vs 2 opponents won't get that done

I don't like the flop lead. You're not often getting called by worse, you're always getting called by better and you're often getting raised which is a terrible result.

Once you hit the turn and you've already lead the flop then keep leading! You hit your nuts, why are you slowing down?

As played river looks good. Definitely get the money in with the full house.

Agree with the above. I also think it telegraphs the hand by donking the flop, it screams "I'm scared of an overcard on the turn!" I see this a lot and it makes playing against very easy.

Feels like you played the hand back to front. It's one of those boards that will often get checked around three way so no need to lead when it's so hard to get value.

On the turn you're just plain losing value when it's there for the taking from hand which will call down three streets but never raise.

River sucks obv but there's worse full houses that play this way so not a lot to be done.