As per the Process for reviewing classic confinement snaps we need to establish if gnome-info-collect meets the requirements for classic confinement and if it fits within one of the supported categories for classic confinement.
If it just needs to see what is installed, could you use the system-backup interface and inspect this from /var/lib/snapd/hostfs/? Otherwise if it needs to execute arbitrary binaries then perhaps this is more suited to classic confinement (although if the binaries are known ahead of time and are fixed then you can just ship them inside the snap and stick with strict confinement).
Can you please provide more info?