Mines protected with a screen protecter. From experience one screen protector is just as good as the next. I purchased the cheapest ones from amazon as I have done with iPhones in the past. Never had scratches or anything on any of my previous devices.
As with cases, I go for something with a snug fit, that protects the whole device. iPhone has had so many cases that I try out and my ipad had a leather case ( goji) where you slide the device in and secure with a Velcro tab underneath and the case has a cover that goes over the screen also and secures with an elastic strap.
So far it seems safe, tbh my devices are very much protected and I'm proper careful as I have respect for them lol
(This message was brought to you from my lovely new ipad)