Your game is very good. Fight/debate system is unique, clever and fun.
I was thinking that this game is really non-linear, more than in fact it is. After I got to the end of First Layer I have tried changing some of decisions in story and got surprised that I couldn't actually. This is best illusion of choice I have ever seen in a game.
Also, I am using linux but got to run it with this windows emulator https://www.winehq.org (If someone also wants to, you need to install DXVK additionally, else it will crash). No bugs.
Edit: on second layer beginning, in University Entrance I am able to interact with "Whispering students" when they already moved away. However after re entering room that dialog option disappeared.