My husband and I purchase two device access so that each of us can have access but beware if your work requires multi-factor authentication, you will need to have both devices signed in. Example: he has to sign in to internet on his phone and PC and then when he logs on to company email from the PC, he gets the MFA code sent to his phone. After he enters the authentication code, he can log off his phone and I can get on my internet with whatever device I choose.
Just something to think about when purchasing packages or when you talk to your IT, perhaps they can send your MFA to a personal email or whatever so that you only need internet for one device.