I would try to port the gnome circle apps to the snap-store, try to style up snapcraft.yaml files of various projects like fragments, headset, amberol by @alexmurray nd wherever I find that the best practices aren’t used like compression: lzo not used, or the cleanup part is not used, or the style is outdated.
But … There is a big but…
Most of the gnome apps are made specifically focusing on flatpak, so often what happens, sometimes there are some special permissions, sometimes the app wants to run in background, but there is no way to do so, at least I can’t find. Also the python & gnome, the python extension is completely broken with gnome extension, and most of the gnome apps are python based. There is the flutter issue also, the flutter extension & plugin is only available for core18, not so updated and lack a lot of packages. I recently posted out about one such issue in forum, but none replied, another big problem… The forum seems to be lacking people who really knows the snap completely.
I would really love if someone helps me out on this issues, as at the end it would enhance the snap community, not me.