SwiftUI drag .simultaneousGesture not working on macOS?

I'm trying to use a button with .simultaneousGesture with a DragGesture to detect button down and button up (instead of just the click):

            .simultaneousGesture(
                DragGesture(minimumDistance: 0)
                    .onChanged({ _ in
                        print("onChanged")
                        isPressed = true
                    })
                    .onEnded({ _ in
                        print("onEnded")
                        isPressed = false
                    })
            )

This works nicely on iOS, but neither onChanged nor onEnded is ever invoked on macOS.

Is there a way to make this work on macOS? Or an alternative SwiftUI way to detect mouse down / mouse up on a button?