With Gsuite you can make a lot of accounts without licenses. You can make a Google chrome profile with these accounts.
you can store passwords and bookmarks related to marketing for instance and do this for every domain in the business.
This can make onboarding easier as people can just log into the Chrome profile and have all the access they need for the specific job: Bookmarks, credential access etc.
A search for why shared passwords are bad gives us a whole lot of other reason why you shouldn't share/have common passwords.
Another problem is that if a user fat fingers and deletes something they will impact everyone that uses that profile. Or if they log in to a personal account at any site (ecommerce/medical/mail) and save the password they are essentially giving access to that account to everyone else who uses that profile