iMac M1 trackpad & mouse stutter, stop, jump, lag
My iMac M1 trackpad is constantly lagging and leaping, stuttering and stopping then jumping. The track pad does this less when I have it connected to my Mac via lightning/USB but does not eliminate the issue. I've tried a different Magic Trackpad on the same iMac M1 and the same stuttering occurs. I connect a Magic Mouse to the iMac M1, same symptoms. This indicates that it is the iMac, not the trackpads or mouse.
This problem started (for me) with the upgrade to macOS 12. It was not present in macOS 11