I've actually taken to using the trackpad more often on my Thinkpad T460p; it seems to me the TrackPoint has actually regressed in recent years; on Linux:
* the default sensitivity is very low; you really have to haul on it to move the pointer significantly. Worse, the hardware starts trying to "correct", making the motion harder and harder to accomplish! (And you can see the correction when you let go completely and the pointer just starts drifting for a while until the correction re-corrects)
* attempting to change the settings results in the kernel driver crashing or something; errors get emitted to dmesg and the device resets. So setting two settings is tricky: you have to loop on setting the first setting, and then once that succeeds w/o crashing, loop on setting the second setting. If that fails, it's back to square 1![1][2]
That said, the Touchpad is not as accurate as the TrackPoint can be, or at least, used to be.
I mostly use an external small wireless mouse now, but that removes a hand from the keyboard. sigh
[1]: Here is another user with the same issue, though he doesn't fully realize it: https://www.reddit.com/r/thinkpad/comments/58c0dn/t460s_trac...
[2]: https://www.spinics.net/lists/linux-input/msg51145.html but alas, no response.