MX Master 3S => custom thumb button => custom gestures => application switcher. Press and hold the button + left or right activates the application switcher. If I move right first, app switcher shows up and keeps going right. Even if I move left after right while still holding the button. Ideally, button press + left/right activates the app switcher, and then the app deletion moves left or right depending upon how I move. Also, while I`m deciding which application to maximize, if I stay on an application for a few seconds, that application is selected. App selection should ideally happen when I release the button. So that I have control of which application to choose.