I have noticed, that when you're at the start of the anxiety tower that you can instead of jumping up to the usual parcour you can descend deeper by falling on the edges down there. (Allthough you have to fall not that deep because it will teleport you back.)

I did this like for three edges. After that I think there is a barrier where it will just teleport you back and you can't go any depper. Did you find some secrets down there, because I didn't find something special. Would be the perfect place for an Easter Egg.

I really like that you can actually find cool things even after you completed the game 100% it feels like there are some things we didn't discover yet.