How do I change the default save location of the Camera app on my brother's device - Windows 10?

My brother’s laptop has an odd issue where he cannot change the default save location in the Camera app for Windows 10.

he has gone into Settings/System/Storage and clicked on “Change where new content is saved” link.

It shows save locations for new apps, documents, music, photos, etc and it shows as OS (C:).
When he clicks the drop down it does not show any options to change this.

he does not have any local policies in place or any GPO’s as he does not restrict local app configurations.

he is needing this as he has engineers that use a shared tablet and take photos and need to change the default save location from C:.
he even looked at the registry for the default apps and could not locate the same location either. appreciated.

Could any suggestions appreciated?
Then please suggest to me because I want to fix my brother’s laptop.
Thanks a lot to all…

Hello @Lincoln

Would you please share the software name which is used in your brother’s laptop. So that i can support you to solve your problem.