In the windows world I download the installer for whatever software I need, click next->next->next (or choose where I want my stuff in my filesystem, add it to the path, opt in or out of stuff) and it works out of the box. No stores. (Well there is one, but I guess no one uses that) In the linux world, I mostly look for package managers, or if not, its mostly just ./configure -> make -> make install (or choose my own…
There's a reason why ransomware exists on desktop and server OSes, but not on iOS, and it's because of Apple's app store model.