Windows? Provided it doesn’t shit the bed, which it often does, things change randomly for no reason and beyond your control. One day you boot up and boom - the UI for x, y, z is different. And there goes 10 hours spread over the next month while you relearn.
iOS is fairly decent about this too.
But it's perfectly possible to just use Linux and not muck around. Or, at least, to spend less time unwillingly mucking around than one would elsewhere.
(E.g., EndeavourOS, which is, perhaps unexpectedly/ironically, more or less just Arch with a nice installer and a welcome screen, is one of the easiest OSes to deal with. [Maybe not completely unexpectedly, SteamOS is also a customised Arch.] It's not the exciting distro, or the one I'm most likely to talk a lot about; but see the first point.)