As per my knowledge, I know we can share files between two apps through
Sharing file between different apps through App Groups
The answer is no.
If you create a provisioning profile with an app group
my.app.group and extract entitlements from it, you will see that the group is referenced as
XXXXXXX is your developer ID, so on another account the group will be
YYYYYYY.my.app.group and it will be perceived as a different group by any device.