Cannot scroll to top/bottom with gesture in Safari

I have tried to assign the three finger up and down trackpad gesture to scroll to top/bottom for Safari (command+up arrow / command+down arrow) and it does not work. Macbook running Monterey. BTT 4.062.

Is it only happening with three fingers? Try the other fingers & also make sure your Mac's trackpad gesture settings don't have 3 fingers already in use by other gestures.