In this case, the only thing I can see is that click left button is broken. (1) If this item is still under warranty. It's best to make an insurance claim right away. (2) If you want to fix it yourself. Replace it with a new mouse switch. Require soldering skill (Make sure is the same item as your mouse)

the "random phantom middle click" is triggered when moving around due to the high sensitivity of that button. I think the middle mouse button may be dirty or malfunctioning. (1) Try to clean the dust or sticky stain on the button. Using contact cleaner spray on the button (2) Or replace a new middle button. Hope it helps