Well I've dropped my iPhone X several times and it's been fine. However they do say the case is supposed to be scratch proof but mine does have a lot of scratches on the back. The main thing though is that it has protected the phone.
I do use a a full coverage glass screen protector but it's from a different manufacturer and it too has worked well in protecting my phone. In fact after several drops the screen protector itself is still intact and in perfect condition. That said all the drops have been on carpet.
Also I did just order another case which I should get tomorrow. It's a Spigen and I got it on Amazon.
https://www.amazon.co.uk/gp/product/B07GTCJLW1/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1