Hi,
i would like to recommend you the following:
For the Work from Home settings, when you activate an access from home to a customer for a device, this will generate a login link that you have to share with the customer... In my opinion it could be better in the customer portal of that customer when you activate this option for him and one device of him
this has to automatically appear in his customer portal, like to get a generated button named login to PC xxx what ever his machine is called and skip the sharing part and the customer will have something with what he is already comfy with (the customer portal) and the customer will not get confused one link two links and so on...
Hopefully my suggestion helps.
Regards,
Valentin