I also don't like the grey mc who is bald with no face. I prefer them with a face, but I'm fine with eyeless ones, though I think at that point they should give a customization option if self-inserting is what the developers want
I can tolerate eyeless in unserious slice of life stuff but I can't tolerate it in anything story heavy. Those kinds of protagonists never look like me anyway in hair/build/etc, so if anything, they just remind me I'm not the kind of person they had in mind, and it's harder to imagine myself in their shoes than in the shoes of a fully established character.
If a character has a human shape with no facial features like a egg ghost, I feel like it's better to just skip having a character design altogether. Since there's a human form, wouldn't it be more natural to at least give it eyes, a nose, and a mouth...
I'm not really a fan of faceless mc since everytime play otome game it's silly seeing lovers kissing the faceless mc makes me laugh bit but honestly I like when mc atleast have eyes and hair