Here we go:
% pamac search pamac plugin ~/src/tiddlywiki
pamac-snap-plugin [Installiert] 9.5.6-2 extra
Snap plugin for Pamac
pamac-flatpak-plugin [Installiert] 9.5.6-2 extra
Flatpak plugin for Pamac
https://lutris.net/ (my favorite)
All software is there. Just need to be installed.
The main visible difference i can see between the "Ubuntu Software Center" and the "Pamac-Manager" are the highlighted and fancy recommendations. If this is what you want, i am with you. Also the possibility to vote for apps and write recessions in pamac would be great. But this would need an active account what the most experienced linux user won't do anyway freely. And well beside of that these functions makes the package-manager more bloatware in my opinion.
I believe the devs of pamac made good choices for the design, but the search reaction when searching for example is sometimes really slow. The first search is not a problem, but when i search something else it hangs everytime. I have to close the search bar and then search again. Sometimes really nasty, if you make a lot of searches.