Weird bug in Macbook air m5

Does anyone experience this when connecting external monitor? It's bugging me out (pun intended)

Whenever an external monitor is connected to the laptop, the dock suddenly bugs out. Like it does it pop up (i have it auto hide) but whenever i scroll or hover to an app, the magnification stays on the first app where the mouse first hovers when dock goes up. Tried fixing whats in internet but no avail.