The iPad would go from a never-buy to a buy-right-away for me, if they added user profiles. It'd be a nice thing to have on your coffee table, where anyone in the household can pick it up and be logged into all of their stuff. Windows XP had this feature. Chromebooks have this feature. It's inexcusable that such an expensive gadget can only have one user.
Tim Cook's fear of people not buying a full set of Apple devices for each person is the driving force behind not just the lack of multiuser support, but also the overall nerfing of iPadOS. For the past 5+ years it's been, "This will be the year of real work on the iPad," but they keep circling around it, trying not to make iPads accidentally powerful enough for someone to skip buying a MacBook.
My macOS muscle memory works most of the time, but there are also quite some details which are slightly different or missing. If they would allow a macOS “mode” on iPad I would choose it over a MacBook instantly for work.