autofocus – Is there an EF to MFT adapter that is known to work well with Sigma’s or Tamron’s 150-600mm lenses?

I own a Panasonic Gx9 camera and a 100-300mm lens. That gives nice reach, not that more reach could not be even nicer (for waterfowl, etc.)

Is there an adapter for Micro Four-Thirds that has good autofocus performance with any of the Canon EF mount Sigma or Tamron zooms going up to 600mm? And does that combination have any other issues.

I am not concerned with weight or balance in this instance.