I was able to reproduce this issue with my old 13" MacBook Pro from mid-2018 by clicking near the edge of the trackpad, so I suspect it's a software setting
The reason its more noticeable on the newer 14" model is that the trackpad is smaller, so we are more than likely tapping the dead zone by accident
The reason its more noticeable on the newer 14" model is that the trackpad is smaller, so we are more than likely tapping the dead zone by accident