Hi @sblantipodi,
The space between the tray icons will become a bit wider when Windows detects a touch driver being installed, with spacedesk it will be the spacedesk virtual HID device.
This is a default Windows behavior.
Just try to connect a spacedesk viewer then send a touch input and it will automatically plug our spacedesk virtual HID device underneath spacedesk virtual Bus device in device manager, then if Windows detects it the spacing between tray icons will happen.