As a user, I want my system to use containerization for me to not worry about where I get my apps from. You know, like Flatpak does it. This isn't really an argument for modern OSes such as desktop Linux anymore.
For example - https://seclists.org/oss-sec/2019/q1/119
Nor are manual reviews by Apple staff...
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1087
I never liked MacOS; Macintosh's charm, which was its UI, went away when I got my Amiga.
I also never liked the iPhone, because a) it's terribly overpriced, b) I don't want a walled garden.
I survived all these years in the raw PC market with no one holding my hand. I don't need a walled garden.
Of course, that's my strictly personal preference.