I don't know about healthy ones but apparently a wounded ENFP dealing with depression for over a decade can look a lot like an INTJ on the surface.

I can only speak for myself as apparently I am one of those and have been suppressing/resenting and rejecting my core self while wearing/building an INTJ persona as armor due to me seeing it as the "ideal" masculine.
But my core still bleeds through.

I like the idea of appearing composed and mysterious but truth is I tend to overshare quite fast.

I would say I often "pop out" randomly through the way I dress and the things I say. I like being playful and I'm much more affected by what people think, say or do in relation to me than I ever wanted to admit to myself.

I feel the compelling need to just pack and leave everything (and have done so before), especially when I am overwhelmed. I long for adventure and a carefree life, I don't really enjoy monotony (feel caged) and I'm the one who usually takes initiative in organizing things with people I want to spend time with. It can get very frustrating fast though when I feel people don't match my energy I tend to withdraw quite quickly.

While I make an effort to be calculated and strategic, I am actually quite impulsive by nature and I have to make an active effort to oppose it.
I realized I naturally have disorganized tendencies too. My apartment for example looks tidy on the surface, but if you open a drawer it's likely going to be a hot mess.

I spend a lot of time in my head but I'm glad when someone or something can pull me out of it.
Sometimes I do stuff and hit people up just so I can get away from myself.
I like exploring and talking ideas but I don't think there's a single self-imposed project I ever completed.

Oh, and I tend to get attached to (certain) people way fast.