You need to update a bunch of separate things on Linux too, though. For example, apt or dnf, rpms and debs that aren't in a repo (although Deb-get handles some of those), Flatpak, Snap, fwupd for firmware, plus language-specific things (npm, dotnet, cargo, Python, etc). At least the UIs handle a lot of it now.
Winget-ui is great, except Microsoft hasn't figured out to conceptually make two installs of the same product get treated the same -- absolutely pathetic that if you install VLC from their website you can never ever ever use Winget VLC without uninstalling the other.
Android has that issue too. Can't install the same app via fdroid and play store. Sounds logical though. Even Arch pacman won't continue of it detects existing files it doesn't know about.