NixOS consist of a bunch of options that you define using the nix programming language. Since it’s a programming language, everything is well defined and organised into single place.

Technically, someone could build a GUI configuration editor with sane defaults and clearly organised pages of settings, which generates a configuration for you. This could immediately change NixOS from the most tedious to a relatively easy to use distro.

They do, several third party options and of course the Microsoft store too. It’s the users who are stuck in their old ways, which ironically is the harder way. Weird.

Private company with long-term strategy VS public company chasing short-term profits to pump stock prices for shareholders.