This is kind of hard to describe in text (I'll try to upload a video later), but after doing a clean Windows 10 installation, the cursor is no longer sticking to the same point on the window when holding and dragging it.

I've found the best way to reproduce it is to open a bunch of little windows in a small area (for example: a file's properties, permissions, ownership, etc.) and then drag another window around that bunch. After doing this for a few seconds, the cursor is in a different position relative to the window being dragged.

This is with the following Window Snapping settings:

Nope, logging is completely disabled and it's still happening.

I have noticed the same thing. Instead of staying on the titlebar while dragging the cursor sort of detach and be a an inch or two above it.