Well, it’s definitely thinner. I don’t use a screen protector. But, if you really want to protect your iPad without AppleCare+, go ahead and get one.
I reccomend the Zagg one. Had one on my old iPad Pro, worked great for a long time.
11”:
Explore a wide range of cases, screen protectors, and more for your 11 inch iPad Pro (Gen 2) at ZAGG. Shop here and take your device to the next level!
www.zagg.com
12.9”:
Shop a wide range of iPad Pro (Gen 3) accessories, including anti-glare and privacy screen protectors, cases and wireless chargers.
www.zagg.com
They are on discount right now, so if you want one go ahead and pick it up before it returns to the regular list price.