Snaps will replace the current third party repository which contains +/v 40 pacakges vs currently 1200+
for the snaps.
Vendor can publish their applications as snap packages themselves this reduce the number of intermediate which means faster updates. The big advantage for Solus is that some vendors currently do only publish binaries and they often do it only in .deb or .rpm format (this is typically what we have in the 3rd party repository).
Since snaps are cross-distribution, there are much more different packagers this means the amount of available snaps keeps on growing
Solus isn't limited to snaps, it also supports Flatpaks and AppImages are also working, so if you don't find something in the main repository nor in the snap store, you might eventually find it as Flatpak or AppImage.
I checked out your link, jiminy crickets. At the top of the page was an app called IKEY SAYS, Oh lordy, the man, the myth...is that the American equivalent of shaking the 8-ball to see the message on the bottom?
(If I did emojis I'd put a little yellow thing with the wink eye here.)
I understand that Solus is leaving the 3rd party repo to snap and that is efficient on your part.
My problem here is I trust Solus. If you don't want the responsibility of proprietary stuff, and you want to meet demand, Solus' stance is basically "here you go, use at your own risk."
I'm OK with this. Like I said, I trust Solus Devs and your advice, and I run a pretty clean system with Solus repo offerings. My big problem is SNAP programs, at least by reading the terminal, MAKES NO DISTINCTION in the comments between open source and proprietary. Even that Uapp link makes no distinction.
This is not necessarily a complaint made of security concerns (it half is). An analogy would be the (if you work on cars and trucks) preference to work with original parts vs aftermarket. Kind of petty, though on my part...that's what google is for. Kryios thanks for the great response.