It’s detachable in my fridge.
I use the egg holder on the door shelf for small bottles that would otherwise fall over when the door is opened. Medicine or nail polish, that sort of thing.
I also the egg holder to … hold the eggs … after they’re boiled, so I can fill the egg cooker instead of boiling just a few at a time. I use cold boiled eggs for sandwiches or salats.
I do not use it for holding raw eggs as those already come in an egg shaped carton.
We had one new guy getting fired for “refusing to talk to people who don’t have a university degree”.