I wish someone better than me would comment on your line, because it seems spewy and bad to me intuitively, yet your reasoning seems strong. Perhaps it is just that the hand you chose to three-bet pre with from out of position at that stack depth is too weak. Flop and turn seem ok,

Like you say I think flatting is standard in this spot preflop, but you are at a good stack depth to occasionally 3bet this sort of hand, however I don't think this hand plays quite well enough post flop to try it, I would rather 3bet a hand like 78s or T9s.

I think the flop cbet is good I like the sizing, but when villain calls this flop bet and on that turn card I just don't see a hand that the villain is going to fold turn, so I would usually give up on the turn in this spot. I don't think you have fundamentally wrong reasoning but from the turn onwards it just seems spewy to me.

About preflop i'm with windows_turnip.
But post idk cbet there. Villain don't fold a lot paired board like that and he is ip with a deepstack and can float a lot. I don't understand why we have to cbet there with our entire range. Seems bad to me. Field tendencies are clear and without a backdoor flush i just check fold there.