So first question is here - is this even a bet ? The flop being 4-way I can´t imagine us ever "bluffing" here so maybe we should check our entire range given we have very few hands we are betting with anyway ? Is this kind of thinking not applicable to PLO given how much we want to push our equity in most spots and focus more on protection/value rather than our overall range ?

Basically I have no fundamental idea of how to construct my ranges for this spot and how I should be playing so all I was thinking was "OK, I am going to try a c/shove". Should betting just be my default here and maybe check something like QQxx so that he has more draws to be betting with rather than with me holding 66(and KK which isnt completely irrelevant I think) and not blocking any TP hands ?

Here I mean I´m not happy but I don´t think I can fold for that price even though I block a lot of the KT straightdraws and it´s likely he is betting a lot of the more naked draws on the turn. Maybe it´s even a fold, I have no idea ?