It’s a difficult topic, but when I asked the question Liam responded and after following his instructions my problems went away. He was helping me with my Shapeoko 3, I thought the Shapeoko 4 had some improvements in this area so you may not have to do everything I did… but know that there is a solution.
I have now run grounding wires from dust collection, x axis, y axis. I used home-depot (cheap) speaker wire which fit within the cable chains. I also added a USB grounding adapter that Carbide 3D sold me.
You can tell if it is or isn’t working if material (wood, plastic, whatever) is still static-clinging to your machine and/or dust collection hoses. Before I added the extra grounding wires I could actually feel the static pop when I touched the dust collection hose.