Officials know that calling too many fouls ruins the flow of the game, so there is a hierarchy of things that rise to the level of foul based on the amount of contact and the context.
On ball fouls will get called way more often than off ball because they are much more easily visible, to both refs and fans. But especially fans, as officials are conditioned to respond to what fans care about, and that is on ball fouls (especially in the act of shooting, but also driving and with freedom of movement emphasis revamp also dribbling).
On ball fouls happen much more often when contesting shots, as the alternative to contesting shots is often to concede a sure basket, so the incentive for (most, looking at you Creighton) defenses is to contest strongly, risking contact, and hope not to commit a foul.
On defense, you make choices about what to take away strongly and what to take away weakly. We take away pick and rolls strongly (hard hedge) and we take out kick out threes strongly. That dictates what is available to the offense. What is left is isolation drives to the basket. These are highly contested drives, often by the man defending and a rotating rim protector. Being highly contested, they are more likely to lead to fouls.
Other teams allow more controlled pick and rolls in drop coverage. These plays generate space advantages and as such are more open and less contested, leading to less fouls. These also lead to rotation to cover the advantage and that leads to kick out threes, which are open shots and as mentioned less likely to lead to fouls.
Our offensive philosophy is rooted in off ball movement which tries to generate space advantages (open shots or open cuts). Jump shots in general lead to less fouls, and open jump shots even less. Fouls committed in trying to stop what we do are off ball fouls, which as mentioned are called less frequently. Our 2pt% year over year is very high because our attempts at the rim tend to be wide open from cuts, not contested drives (and again contested drives are the most frequently called fouls.)
Also, some refs don't like Dan Hurley. And yes, he probably has harder practices with less called fouls and more physicality. And yes, he values aggression and toughness in defensive philosophy. And we crash the glass aggressively which will lead to some fouls.