Yes, the prompt tries to get them to play GTO. I do think their preflop play is the closest to mirroring this compared to postflop behavior.

Is this tuned to tournament or cash GTO? To the OP's shock about pocket 4's (I think this is what they meant by 4-pair(?)), folding 4's pre flop in early position to no raise would be fairly standard in tournament GTO (although the stage of the tournament and # BBs can change things up significantly), but less standard for sure in cash (almost never probably).