Besides the actual hardware, I think the biggest problem is the software implementation of trackpads in Linux (at least in libinput/Wayland). Even running Linux

Besides the actual hardware, I think the biggest problem is the software implementation of trackpads in Linux (at least in libinput/Wayland). Even running Linux on my Macbook, the trackpad experience is vastly inferior to macOS. I don't care too much about gestures, but mostly about stable palm rejection and proper acceleration curves. The current implementations sadly provide neither.