Pilsang is not INFP, maybe he's close to ESFP. But definitely not INFP, ESTJ x ESFP

Actually it makes sense… he’s very extroverted when he’s working or screaming at the people around him hahah but actually whenever he interacts with strangers its extremely guarded and almost shy in a way

No, not really. It just means ESFP is capable of being guarded and introverted another then... It's just closing and how unexplored the mbti type is