Android and MacOS each have a lot more users than desktop Linux, a lot more applications packaged, and applications get updated in a more timely fashion. Obviou

Android and MacOS each have a lot more users than desktop Linux, a lot more applications packaged, and applications get updated in a more timely fashion. Obviously that's not all down to a difference in packaging, but it does seem like the inefficiency of duplicated dependencies isn't all that big a problem. Android also runs on phones that still mostly have less storage and less RAM than our desktops, so you'd expect saving space to be even more important for Android.