Increasing perception at 1, makes item appear on the ground, then I think it increases the frequency.
Strenght is useful for combat and for many interactions that are in the game, Hunter you can upgrade freely by doing Corven’s quest and is useful for killing rabbits, wolves and deers, and also for two interactions for Rumah village questline, Intelligence is also useful for some interaction but not as useful as strength for now (in my opinion), while thievery is practically not really useful (For the updates we have), I say go with dexterity, constitution and strength if you want to battle solo and build up your character, then after I Leveled up a bit, I usually put some other stats for useful interactions.