Fully updated fedora-41-minimal: “no match for argument”
Fully updated debian-12-minimal: “package qubes-core-agent-network-manager is not available”
The same for any other packages mentioned in the official documentation for minimals required as sys-net and sys-firewall.
Only iproute installed in fedora for me. Tested the fedora template as sys-net with same settings as my current 38 minimal, just in case documentation is outdated and the packages are obsolete, but no connection.
I was unable to replicate on a fresh debian-12-minimal template. apt-get install qubes-core-agent-network-manager worked as expected. So it must be an issue with your local setup.
I’m on 4.3.
I get repos and can install other packages without problem, for example anything listed here Fedora Packages Recommendations for Network & Proxy VM