Hello! To start, I want to say that Solus 4.4 is very good. I'm really liking it.
I'd like to make a couple of suggestions for the next major release (hopefully).
Please add a couple of toggles to the Software Center (in the Settings section):
1) Enable/Disable Flatpaks
2) Enable/Disable Snaps
Once enabled, the Software Center would then add two more categories (in the pane on the left):
1) Snap Packages (if enabled)
2) Flatpaks (if enabled)
This way, those packages are more-easily filtered for end users to search through.
Finally, when Snaps and/or Flatpaks are enabled, the Solus Software Center could then be used to install those packages. Having a graphical process (via the Solus Software Center) would add just the right amount of spit and polish to attract even more users to Solus.
My current process is to navigate to Snapcraft and Flathub via the browser and then run the install from the Terminal. Again, it's not a showstopper for me, but I would choose the Solus Software Center over using the Terminal if I had the option as it would also make uninstalling packages that much easier.
Thanks!