If you went to buy a car, would you be fatally paralysed by indecision at seeing two different makes that looked ever so slightly different parked side-by-side?
Of course not. That would be idiotic.
99.999% of people don't need to go off road, and only need a bog standard desktop distro.
The car analogy is that you've got the boring Toyota (Windows), the boring but somewhat nicer Honda (Mac), the slightly more efficient CVT Mitsubishi (typical Linux) that needs some major component (X11 or w/e) replaced in 2 years and fewer people will know how to deal with it, or the same Mitsubishi except with stanced wheels and degen exhaust setup to be cooler (Arch Linux w/ XFCE or w/e).