Thank you for the post.
We can provide the restrictions for Samsung devices and for the devices which are provisioned as Work managed device (Device owner mode) or Work profile mode via Android Enterprise.
I would recommend to test whether your device supports the managed account as follows:
If the device supports managed accounts, you can find the document explaining how to enroll the device to Work managed device mode here:
As you can see the only way to enroll Android 5 devices to Work managed mode is via NFC.
- Jarkko / Miradore Online Support