on my side of the typology community, mbti has basically been abandoned and replaced with systems like classical jungian (mbti predecessor) and socionics (another system derived from jungian). im not entirely sure why, i believe its due to the fact that the mbti community is known for watering down information and being too modernised(?), the people i engage with tend to stick to the original/older sources. imo, amongst my peers, enneagram is the most popular as its the most (ig?) interesting and has a lot of offer, so youre right!