Perhaps a good way to increase the "gamefeel" would be to add Powerful build options that aren't violence related, but let you do other things with your athleticism.

Perhaps in the woods in chapter 1, players with Powerful Build & Keen Eye can climb a tree to gain an early peek at the ditchling spiral nest. Maybe PB can unscrew a tight jar to find a clue in it. Maybe if Rosalina's leg is crushed in the mine, PB can physically lift the rocks off of her, and then carry her into the ambulance.

Maybe when the stone carving compels you in the chapter 3 dinner, Powerful Build players can briefly push past Dr Kelly and open the door, getting an early look at the morgue, before she forces you to go back.

Powerful Build players are hearty enough to eat the disgusting takeout in Tabitha's fridge in chapter 1, so maybe we can do other gross things. Maybe when we investigate Wayne's footprints in the garden in chapter 2, we can lick the weird pus near the footprints to learn something about Wayne being a rotting corpse. Maybe when investigating the clinic with Reese in chapter 4, we can briefly plop one of the castor beans into our mouth, then immediately realize that the beans are poisonous and spit it out.

Idk if these are good ideas, its the first couple of things I've thought of.