lubuntu – Desktop icon does not appear in LXQt

I am using Lubuntu 22.04.2 LTS with LXQt 0.17.1 and am trying to launch the intel vtune-gui (standalone version installed from here and environment variables set from instructions here) via a desktop icon. While I can easily launch this from the command line with vtune-gui, I want to use a desktop icon (the location for which is /opt/intel/oneapi/vtune/2023.0.0/bin64/vtune-gui.desktop); however, when searching the applications menu by clicking the bird in bottom left corner and searching vtune, nothing appears. How can I make sure the desktop icon appears in the application menu?