The ones that aren't tend to be those who are misguided, coerced into transitioning for one reason or another, and tend to be less grounded in their beliefs (as in, they believe it with less sincerity and usually end up detransitioning)

This one is especially true. I've come across a few people who were calling themselves "Trans" get upset with me on certain videos on YouTube following gender critical people and whenever I would challenge their beliefs and stump them, they usually would back off and in 2 instances, stopped calling themselves trans even. I think that the pleasant ones are usually exactly what you said, younger, naive people who were coerced by older trans-identified people (usually men calling themselves "Transwomen") into the ideology.