For iPadOS had heard of people getting it bent because of the case they used requiring force when they took it in and out. Screen is also big and its thin so that can make it easier to bend if you are putting it in a bag.

I put my iPad in a hard shell laptop case if I’m putting it in a bag. And for general case to protect from scratches I used one with soft silicon edges so it was easy to take in and out a opposed to the ones that snap to the iPad.