Does anyone have photos or step by step visual instructions for using the mud and flat tape method of finishing the drywall edge that goes over a three piece acrylic tub and tub surround unit?

Use wonder board/ concrete board in the tub area behind the tub surround. Seal the seams and corners with thin set and mesh tape.Put a bead of silicone at seam where wonder board meets tub.

Cut concrete board about 2'' short of with of side surround units. Butt water resistant sheetrock to concrete board and seal the joint. This will make finishing the wall easier.

Chuck