Based on how Wikipedia explains it in your link, I think the feeling I get from liminal spaces is similar, but not the exact same thing as what I described. Liminal spaces often elicit feeling often from an unexpected lack of something that should usually be there. For example, being in mega-sized stadium all by yourself, where there would usually be thousands of people at once, or walking around your school yard ultra early in the morning when nobody is around. This certainly produces a similar feeling to what I described in my post, but different, and I can still get the feeling in busy or loud environments, it’s just much rarer, and I haven’t experienced it enough to be able to tell exactly what sets it off in busy or noisy environments.
I got it once in the last year when I visited the city of Melbourne, Australia. I arrived at Southern Cross railway station. I had to wait for a friend to pick me up from there. I stood out of the way and leaned against a wall right beside a Hungry Jacks (fast food franchise), and the feeling came over me when I observed my surroundings, despite being in a very busy and noisy environment. This is kind of an opposite situation to the feeling you get from liminal spaces.
https://ladybird.org/