Apps - create desktop shortcut
For installed Apps, there is the RMB-menu option to create a shortcut on the desktop.
Such a shortcut is created on the desktop alright, but it does NOT start the App in question.
Vivaldi is started and that's it.
Looking further into the details of the shortcut, one can see that only the name of the desktop shortcut relates to the App in question, but the link only points to the Vivaldi executable with - as far as I can see - no further options or arguments.
Looks like a bug in Vivaldi.
Known bug: VB-15616 "Creating Chrome app shortcuts is not supported"