It is due to few apps not snapped yet and she needs those absolutely. I remember (probably incorrectly) reading somewhere that installing Discover store brings flatpak support. Is this the case?
Or is it mandatory to use terminal commands to get the flatpak support for Ubuntu?
Sorry if this question crosses the line of not belonging here 
How would we know, we’re the snap community here 
Better try asking on discourse.ubuntu.com…
(Also note that i personally believe there are way more snaps than flatpaks today, but many of them are server or cli application snaps. if you solely look at gui apps they might be on par or flatpak might even be ahead, but snaps go way beyond just gui pieces)
