I have several crazy cats and have never had a false alarm. Motion sensors (v2) are placed ~7’ up from the floor with Wyze logo and reset button on the left. Sensitivity on all of my indoor v2 sensors is set to Mid.
I have a few cats. It kind of depends how I have the motion sensor mounted. For example, I have some that I keep upside down at shoulder height or so, and I can’t recall a time those were triggered by my cats.
On the other hand, I have another one that I mounted on the ceiling by the doorway of my stairs (only 7-8 feet above the ground), and that one will trigger when my cats walk on the stairs.