Notify only after package updates are installed and not available

SYSTEM INFORMATION
OS type and version CentOS Stream Linux 9
Webmin version 2.303

Right now, I will receive at least one email when updates are available.
Then an update once updates are installed.

Is the a setting to change it so I only receive updates once installed?
I really just want a notification to tell me when I need to reboot.

Centos 9 stream is not supported OS but I do see your point, it could be an option/improvement but to be fair you could kill non reboot emails using usermin, assuming you have setup the correct rule within usermin

CentOS 9 Stream is currently supported as a grade B system. We’re rethinking its status, as it’s fairly usable for servers.

As for reboots, you can configure DNF to automatically reboot the system after updates are installed and only when a reboot is needed.

Nevertheless, Webmin 2.303 should already have an option to configure a reboot-required monitor on the “Tools ⇾ System and Server Status” page.

Thanks, never noticed the “reboot-required monitor” That’s exactly what I want.
I don’t want to do auto-reboot because I want to be there to make sure the reboot succeeded and do it at a time that is convenient to me (incase it does not succeed and I need to fix it)

Yes, I’m aware CentOS 9 is “grade B”. However Redhat 9 is Grade A and I thought CentOS was nearly the same as Redhat. Or at least it use to be. When I first set this up, I mainly was just trying to pick which ever OS was most “stable” as I tend to “set and forget” this server.