People do actually do this sometimes - when Fragments went out of vogue a lot of people switched to using Compound Views/ViewGroups with their own View Controller/Presenters and just switched the visibility in the Activity.
It works fairly well for a handful of pages (say, bottom nav bar pages), but you wouldn't do an entire app this way - especially now that Support Fragments are actually good and the recommended way of doing it.
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People do actually do this sometimes - when Fragments went out of vogue a lot of people switched to using Compound Views/ViewGroups with their own View Controller/Presenters and just switched the visibility in the Activity.
It works fairly well for a handful of pages (say, bottom nav bar pages), but you wouldn't do an entire app this way - especially now that Support Fragments are actually good and the recommended way of doing it.