Thank you for the feedback!
You are right, I should have added some graphics options to make sure everyone can experience the game as intended. I forgot to add that, an update having graphics options will come the next days.
What glitch is there? I tested it multiple times and the game is (okay, with a good frame rate) beatable without the usage of any glitches.
I now removed Linux and Mac from the compatible operating systems. Thank you for the info, I didn't know it wasn't running on these systems, I expected they would because Unity stated the build as "PC, Mac, Linux Standalone".