But if we go down this rabbit hole of user preferences, then we also have to criticize MacOS or Windows for being less customizable than Linux.

And we certainly can do that, it's just that what we are discussing in this thread is not related to that concept.

The root comment of this thread is "An important lesson for anyone who believes it makes sense to use an iPad instead of a computer. (for any task)" which is just a ridiculous statement, especially the "for any task" part.

Whether or not I can complete the tasks I need and want to do has very little to do about the level of customization of the OS.