I started noticing some grey “stripes”, foggy line running close to the 4 borders of the screen. Like a “framing”, so to speak. Thing is, when I take a screenshot, they are not there any more!
When the image is still, the camera or plane doesn’t move, they don’t or barely show up.
Any one saw those ? Doesn’t matter what weather or plane, inside or outside cockpit. They even show up during the small panning on the tarmac, before starting the flight.
I have an Nvidia 3070 RTX, windows 10.
You can take a photo with your handy 
Only thing I remember is something like that:
Is it similar to what you mean ?