No Problem Lizzie.
In general our use case is pretty easy to describe:
Our devices are used by store staff, including store manager (and maybe deputy).
So, storemanagers ahve a seperate mail which can contain personal data so shouldn't be accessible for the other staff. So, without a dedicaded space, they won't be allowed to use it on the store devices as all other employees have access to it.
If we could provide such private space for them where they can put in outlook as a seperated app (but keeping the original one for store staff mail) and maybe other apps like teams or so secured by a psk only known by them, they could use this the devices way better.
There are manufacturers who provide similar functionality like Motorola with Thinkshield + secured folder but thiose are isolated to manufacturer which is not nice as we wopuld need this as a functionaliity over all devices, manufacturer independent.
Also want to mention, it would be good to have the possibility from admin side to remove this private space (but not to unlock it!; just in case a store manager switched or has forgotten his passcode) from the MDM (of course the MDM has to use that API and implement it as well).