I don't think folding is too nitty but this guy looks really loose so far. Call or 4b are both fine obviously. If you think he has some broadway type shit in his range that folds to a 4b then calling is 100% superior BUT 4b bluffing a bunch of shit is going to be better v this range. If he's polarized then calling is likely to be best(Especially with his super high cbet %)