Personally in your job, I'd get an otterbox case.
They do a full front n back case, or back case that sits in a belt holder,
Me ... I wear this all the time, and the phone has a back case on.
OneTigris Large Smartphone Pouch...
https://www.amazon.co.uk/dp/B015KP7RH8?ref=ppx_pop_mob_ap_shareIn 31 years of phone ownership I've had one phone break on me, and even that wasn't purely my fault.
I just purchased a new pouch, where I can store a powerbank unless too with my phone.
.....
If I helped or solved your problem, please like or tick solved.
Have been using phones since 1993, and am self taught.
I offer advice for free, cos I think it'll help, if it doesn't, explain why, I might learn something new too.
Current phone Galaxy S22 Ultra
Previous phones: most S series, Note 2, Samsung Alpha, iPhone 3gs, far too many Nokia's!