Apple Users

Someone was inadvertently touching a trackpad, causing bizarre results.

I was using a wired mouse. Forgot why I stopped.

Got a magic mouse, and the horizontal scroll is almost always helpful, (as is the vertical)

except for those times that it messes up my tracking in some image editing, which tends to be critical.

I lessened my "tracing" worries by using "remove background"

It exists on Ventura and newer OS macs in the right-click/control-click drop down menu when you click on an image's icon.
Under "Quick Actions". It's in a sub-menu, so it's not obvious.