I did a “dnf update” on a Fedora 38 and after rebooting executing “virsh list –all” I got:

Id Name State
-------------------------

I tried running virt-manager and it had problems connecting – it would list my virtual machines, then disconnect

At the bash prompt I executed

virsh uri

and got back

lxc:///system

After executing

export LIBVIRT_DEFAULT_URI=qemu:///system

everything started running correctly

I added the line:

export LIBVIRT_DEFAULT_URI=qemu:///system

to the end of /etc/bashrc and that appeared to take care of the problem. Researching why I needed to do that.