Found it:
If one enables the fedora-updates-testing repo in f35 and then performs an update, dns breaks under R4.0.
I have not dug any deeper but if I
I had to guess, I’d bet it’s related to the systemd-resolved-249.11-1.fc35.x86_64 update which calls out the following specifically during the update:
‘/etc/resolve.conf’ → ‘…/run/systemd/resolve/stub-resolve.conf’
If that is or is related to the cause, it might be a call out to something that needs fixing for f36 too.
B