Do wireless charging mousepads interfere with mouse tracking?

No. The charging coil sits under the surface, and optical/laser mice read the texture of the pad, not what’s beneath it. As long as the pad surface is uniform, the coil won’t mess with your cursor. Manufacturers offset the coil from the typical mouse center, so the sensor isn’t parked over it. Ultra-cheap pads might have a visible bump, but that’s a build quality issue, not magnetic interference.