Software app - snap interfaces management, under hood

GNOME guys kindly informed me it is Ubuntu Software app team where Software app got snap support, hence my point raised here.
Ubuntu 20.04 with all updates installed, Firefox snap of latest stable released version.
Gnome makers stress it was Ubuntu where Software app got snap support.

GNOME Software app > Firefox snap > Permissions > User your camera > ON

at the same time: (I can't get proper text presentation/formatting, sorry)
<pre>
 $ snap connections firefox
 Interface Plug Slot Notes
 camera firefox:camera :camera manual
</pre>

Let's change this setting as next:
GNOME Software app > Firefox snap > Permissions > User your camera > OFF

at the same time:
<pre>
 $ snap connections firefox
 Interface Plug Slot Notes
 camera firefox:camera -
</pre>

Similar behavior for Avahi interface (I guess all remaining too) - slot side gets manipulated.

Actually setting in GUI is placed in Firefox snap. It doesn't seem to be reasonable for engine under hood to manipulate interface slot-side. Interface slot-side is under control of other snap or resource controller not the Firefox snap. Reasonable would be rather to modify plug-side on changes of shown app snap setting.