When I am rezing windows (so far only noticed when using a browser and doesn't matter that its Chrome or Edge) there is glitching on my laptop screen, but stops when I stop resizing the window. I have also noticed this happening when I load a webpage with a lot of information on it (like youtube.com). When the page is done loading, the glitching stops.
I checked for Windows and driver updates, but everything appears to be up to date. I have also run the Dell diagnostic tool and everything passed.