I've always thought the trackpads on the 'large' Mac portables looked huge. I disagree a bit with tap-to-click, which apparently I've had enabled without issue but I don't believe I actually ever use it.
I've never known about the the three-finger drag setting but I'll give it a shot.
I struggle to understand who could have thought this would be a good idea, but apparently somebody must find it useful. I think on some of them, the right side of the trackpad-completely unidentifiable by touch-would trigger scrolling instead of moving the cursor. Maybe things have improved now, but one of the greatest crimes I noticed was trackpads where certain regions behaved completely differently. Having used non-Apple laptops with trackpads, I have always been surprised at how universally awful they've been. I can't recall having problems with accidental clicks in years, and I too have a Magic Trackpad for my docked laptop. I initially had some palm-rejection issues with the very first 'oversized' MacBook Pro trackpad (2016?), but I think that must have been resolved by an update.
