How do I configure "Flatpak" to use the "updates proxy" in a template VM?

Hi, I was wondering if it is possible to configure “Flatpak” to use the “updates proxy (http(s)://” in a template VM so I don’t have to attach a NetVM without enabling it system wide for security’s sake?

I have already achieved this for “Snapcraft” using the following commands:

sudo snap set system proxy.http=""
sudo snap set system proxy.https=""

Any help would be much appreciated, thanks in advance…

Snap packages are installed in appVMs (see here). So perhaps the same logic applies to flatpack? no idea.