After installing the Okular snap and then typing
okular into the menu on gnome, I’m seeing two icons. Both of them launch the app.
In /var/lib/snapd/desktop/applications there appears to be two .desktop files for okular.
There is okular_okular.desktop file that I would expect to see, but there is also a okular_org.kde.okular.desktop as well.
I wasn’t sure if this was intentional or not.