So I managed to get past the first chase scene, but quickly got very confused. After randomly being jumpscared a few times, I gave up. My apologies.
The sprite of the guy is quite creepy. Good job!
The sound is too loud. The audio was constantly peaking.
I found a very funny visual glitch that happens if you shrink the browser very tight. It reduced the scariness by a good deal.
Fun fact: while I was taking this screenshot, the glitch noise finally loaded in and played the entire two minutes. It was... unpleasant.
All-in-all, it's very rough. Good effort, but needs improvement.
Now, I did play using the github link, but first, I tried downloading the 500 MB zip file, only to find that it's an HMTL folder that I can't run. However, it also gave me access to all of the assets.
Why there five different 58-64 MB models of seemingly identical desks? Why does Floor.glb have 300,000 triangles? It seems like thew reason the game is so large is because of a classic blunder: large amounts of unoptimized 3D assets.
This is a very, very easy mistake to make as a newer developer, especially with 3D games. I'd advise looking into learning how to optimize 3D assets.