The minibar trick worked for me. Without it, the mouse (when showing an arrow) would toggle between a thick black border, to a thinner border, every few seconds, showing the thick version for about half a second, and then the thin version for a few seconds. Also, my whole laptop screen would get extra bright once every few minutes, for about a quarter of a second.
I upgrading the vmware display driver (via Windows Update - driver updates) to
VMware, Inc. - Display - 8.17.2.14
This changed the behavior, so now the mouse flickering is happening a bit less frequently, and with a different pattern. The cycle is now not consistent. I will see the thick border for maybe 10 seconds, then the thin border for maybe a second or two, and then maybe a thick for a second and a thin for a second. Very strange
Keeping the full screen minibar always visible, with the new driver (or the old) made the issue go away
Very strange