The lines are permanent and appeared out of no where. The device has never been dropped nor exposed to moisture prone areas and also has been in a cover from the day one. What should be done as I have it in the standard 1 year warranty.
iPad Pro 11-inch Wi-Fi
A reliable method to confirm a screen or other hardware fault is to take a screenshot when the fault is evident - and then review the captured screenshot image...
When reviewed, if the lines are not present in the screenshot image, then you have demonstrated that you have a hardware fault that, sooner or later, may become sufficiently severe that repair or replacement of the iPad are the only options. If the lines are visible in the screenshot, the something other than hardware will be the cause.
Note: When reviewing the image, rotating the iPad screen orientation by 90°, from Portrait to Landscape, will ensure that the image does not coincide with screen defects if present.
Take a screenshot on your iPad – Apple Support
If the test suggests a screen hardware fault is present, you can arrange for repair:
iPad Repair - Official Apple Support
You might instead visit the Genius Bar at your local Apple Store or Apple Authorised Service Provider (AASP) - where the technicians will be able to test and assess your iPad - and arrange for repair if required:
Genius Bar Reservation and Apple Support Options - Apple
In that case, start here.
You are on a FaceTime call. Might that be related?
Nope, it appears anyways
Yellow, red and black lines at the bottom of my iPad Pro 11" 2021
