The trackpad regularly stops responding until I lift my finger and start over with whatever I’m doing with the trackpad.
Example: if I want to move the cursor from one side of the screen to another, part way through the trackpad will stop responding to touch, no matter how much I move my finger around and change the angle and pressure of my finger.
Only once I lift my finger and then try again does it register touch.
I assume this is some kind of faulty activation of palm rejection
Update, I found a solution:
I followed the guide for fixing trackpad rubbing, but instead of doing one corner I repeated it for each corner. And instead of just “making sure not to over-tighten it”, I made it snug as described in the guide, but then loosened a tiny bit.
My theory is that not making the screws snug keeps the trackpad surface totally flat, and the alignment is just for good measure.