I suffered the same issue two or three times (MacBook Pro M1 with Big Sur 11.2.1). I can see the cursor on the screen but cannot move it. The good thing is that the trackpad still responded, blindly.
adventure-island
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution