This might be because I am just plain stupid, and others in the snap community that I have asked on Twitter have just ignored me, so it might be the case. If so, I deeply apologize in advance.
In KDE Neon with tcsh as shell I have no GUI way to start apps. They do not show up in the plasma menu, nor can I start them via the launcher [Alt]+[F2]. Finally, I have been able to start them via “snap run”, but that feels a bit unintuitive if it is the only way.
So please point me to the simple solution that I have overlooked, or tell me how I can help mend this oversight.