I activate Live View (View/Show Live View) and it does show when I'm touching the trackpad but it doesn't show that any gestures are successful, despite them working (more or less) correctly in the browser that I've configured. Specifically tip taps (2 finger left/right) and two finger rotations are not reacting in Live View.
Macbook Pro 2018
16GB RAM
MacOS 11.5.2
BTT 3.579