How they're different (part of the answer)

One weak point in Ubuntu and probably other distros is that they don't seem to automatically
either restart services (with a warning) or tell the desktop user that 'XYZ app is open - be
sure to restart it soon to pick up the latest update'.  Ideally such warnings would provide a
URL to the distro security advisory so the user can decide whether to restart urgently or at
end of day/week etc.

I'm curious to know if any Unix/Linux systems do this.