In this puzzle in the Shoemaker Glacier there is a tiny piece of geometry in between the A and E of the AREGIR logo that can be jumped off of, I am pretty sure that this can be used as a skip. (info provided through imgur link)
Since this game doesn't have a speedrunning discord yet I am posting it here for all to see, who knows I might even try to run it myself when I finish it (I discovered this completely on accident during my first casual playthrough)
Later in the glacier there is a green barrier you can get around due to the elevator edge not being aligned perfectly. Imgur updated
Glacier is probably the level with the most issues/glitches/weird textures. There are many weird spots you can stand on, I've never seen the ones you shared though, they could be useful. I 've also just created a dedicated discord server.
