Logitech Options was able to bind any input, including media keys like fast forward, pause/play and rewind to the scroll wheel on my MX Master. Options+ is incapable of doing that.

Also, whatever different has been done with Options+ in sending keystrokes means that keybinds in many of my programs no longer work - the keystrokes aren't sent, but only typed, meaning that my mouse will type the character into a text box, but does not seem to send the raw keystroke.