Morrowind. I loved exploring the world, hoarding stuff, and leveling up, but towards the final boss area I just kind of fell off and played other games. I don’t even remember why, it has been a few years now. Definitely put like 2-3 hundred hours into it. Also used several gorgeous graphical mods which made exploring the world even better.
What a tragedy. Giving files slightly different names seems far more organized and logical than having several files with the same name and different capitalization. Really seems like a non-issue to me.
EDIT: I will never simp for Windows or Microsoft, I definitely think Linux is better in many ways. But my point still stands about this specific topic.