Hi @nofolobricity,
There is actually an option to hide the tray app from the taskbar, you just have to go to the System tray (the little arrow at the bottom right side of the screen). you will then see the spacedesk Icon > Right click and click “Hide Connection Window” This will allow the spacedesk tray app to permanently be hidden inside the windows system tray.
Please see the attached screenshot for further assistance.