On a Linux host (Ubuntu 20.04), VMware Workstation surrounds a running VM with a thick border in Console View. Not only does it waste screen estate, but it also complicates mouse clicks on edges.
We can start vmware with the GTK Inspector to find out the GTK widgets that cause the border:
/usr/lib/vmware/bin/vmware --gtk-debug=interactive
1. gtkmm__GtkAlignment (Defined at GtkAlignment)
top padding 0
left padding 6
right padding 6
bottom padding 6
2. gtkmm__CustomObject_lui_FocusFrame (defined in GtkFrame)
shadow-type GTK_SHADOW_IN
In the inspector tool, if you set left, right, and bottom padding to 0 and change shadow-type to GTK_SHADOW_NONE, it completely removes the border and essentially appears the same as if you were running VMware Workstation on a Windows host.
I am not sure about the purpose of the border or if it was just a simple oversight. It would be nice if there was at least an option to remove it; the alternative, running in Full Screen mode, is not always preferable if quick navigating between host and guest is required.