Thanks for the feedback Doug.
I tried it. On the case of the Thinkpad T14s, it disabled the Trackpoint and Trackpad at the same time, allowing me only to use an external USB mouse.
I would prefer to disable the trackpad via software, since this machine has dual boot and sometimes I need the trackpad on Windows. But this machine has a way to disable only the trackpad on the BIOS. I will return to that setting.
Thanks.