PLO50 AAJ5rb 5way pot, going for funky line

Equitywise on the flop you are committed against anythin so in general it makes sense to call when you can't push equity. I like your argument for betting with the A♣: , blocks flushdraws that would continue for sure and it also advocates the specific hand for a bet-call (you want to have some naked nustraights that still shove though - I think it's ~25% B/R vs B/C in hu? Idk how it is 5way ..^^). But mway with a player behind I'd rather 3bet allin at that SPR, we can deny more equity on avg. by making it more expensive for BTN and if he stacks off we can still occasionally have a slight edge in a 3way stack-off (those spots where both nutstraights are dominated by set+fd are basically coolers I'd say cause nobody folds nutstraight there right).

Ott we are committed and the shove seems to be okay since the SPR is ultra-low. Otherwise it'd be theoretically questionable, cause when villains calling ranges combined are so flushdraw-heavy they have flushes, hands with less SDV but outs left - primarily sets or stuff that won't call anything air or busted draws (+weak sdv). In theory we should go for a call or shove the river after X-X (it filters out some of the more polariized parts that villain should bet ott, expands river calls and we'd be more close to thin value region since solver also bluffs 3way but practically people just stack off the same sort of texture-dependant value-hands inelastically so it kinda depends on your estimations. Another thing that speaks for checking the turn would be it'd allow us to make an exploitative fold when BU bets and EP decides to call once you have a read on EP to be tight enough).

Nut flush we would mainly go for value on turn though unless perhaps with strong support like set or top two pair. So from that point of view I can see nut blocker making sense to bet. Of course issue is that we have no equity versus flush so e.g. some set with nut blocker would be better in a way. Assuming we can get straight to fold without much backup.

This hand was overall kinda special case scenario as CO had absurdly wide range compared to normal scenario. Means that he has more flushes somewhat but also way more J9 or two pair.

Stack depth was kinda nice for this. I think we can also bet if we have deep stacks to leverage nut blocker but for that I would prefer to have like spr 2+.

From result oriented view:

Both villains folded which was awesome

Your line was best then I'd say, if BTN is too loose you don't want to give a freecard ott