how to get permission to mount an ISO in virtual machine manager after ujust setup-virtualization?

Solution
~/ is not in the list of permissible folders provided by default to virt-manager https://github.com/flathub/org.virt_manager.virt-manager/blob/96696d2308a32032b57ad2a54b4f778467a0a9ff/org.virt_manager.virt-manager.yaml#L13GitHub
Contribute to flathub/org.virt_manager.virt-manager development by creating an account on GitHub.