Installed Software not launching -thinkorswim

I am trying to install Think or Swim in Zorin. When I go through the steps from TOS for an Ubuntu installation, I looks like it loads. But, then nothing happens, no desktop icon, nothing.

Is there a way to find out what apps are installed in Zorin?

You can list all installed apps from terminal with

apt list --installed

There is quite a lot in this thread; perhaps it can help with troubleshooting: