Not on Ubuntu with Gnome flashback. I get an update popup at least any other day with the new versions of some packages or security updates. Reboots are for switching to new versions of the kernel. I confess I sometime postpone reboots for even a couple of months. I suspend my laptop and I have too many open applications (desktop or background) to be willing to close and restart all of them. If it's really like that, no Fedora for me.
Most distros have this no bundled libraries rule, so either the stale version can still be used after an update, or if it's yanked out from under running processes, they can crash. Hence rebooting. macOS and Windows have mandatory reboots for anything system related too, so this is not out of the ordinary.
Right now, if you use flatpak based applications on Fedora, they get updated without reboots. And that's the way forward, including for the desktop environment itself eventually.
