As a new Linux user, I used to think along these lines as well. The problem is that the whole reason I was using Linux in the first place was my dissatisfaction with the offerings from Apple and Microsoft. I started on Ubuntu and became dissatisfied with that. I tried a handful of other flavors and eventually settled on Arch.
One of the issues I see with requesting Linux consolidate to become more like Windows or MacOS is that the people who abandon those platforms likely will not be happy with a one-size-fits-all solution. From my perspective, the diversity of choices is one of the main strengths of the platform. If there is already a platform that better suits your needs you have no reason to switch in the first place.