I am running Qubes 4.2. I recently installed the archlinux template and often possibly more than half of the times when [Dom0] Qubes OS Update shows there is an update available for it and I run the update it doesn’t find anything to do. When there are new packages available they update without issue. I do not get unneeded update notifications for either my Fedora or Debian templates. It is merely a minor annoyance but I don’t know what is causing it or if it merits attention. This thread makes me suspect it is a known issue and not a problem I have created: https://forum.qubes-os.org/t/improvements-for-archlinux-and-debian-template-updates/26395
Yes. It is a well known issue and you did not create any problem.
Please refer to this under core-admin-linux paragraph:
But please note that it takes time for the very recent change to move from testing stream to stable stream and becomes available to everyone.