I like the bumper, its plenty to protect screen if it falls face down - without being too obnoxious.Do you think the bumper should be thinner or good as it is? What model case do you have?
I don't think there are models of cases - I have their ipad case on four ipads - two in my household, and two I bought my parents: https://www.zugucase.com/collections/ipad-cases
I'm using it on an iPad Air 4th gen - it holds the apple pencil and lets me charge it.