Please take a look at the above videos to see how the right air trigger is malfunctioning.
Try cleaning the trigger area if there is any dust sitting on it.
It's clean enough
We've had a couple of users mentioning issues with the right trigger earlier but they have all been fixed with FW update. It could be that you have hardware malfunction but before you contact ASUS Support, please wait for the Android Q FOTA. Could be that it will fix your issue.