No everyone wants that the email the had when the create their facebook appear appear in their company business portfolio. To be able to connect a company email to login in your facebook page you can follow the next steps:
1- Go to your facebook personal page from your computer or mobile.
2- Click your profile picture dropdown, select "Settings & Privacy"
3- Click "Settings"
4- Find and select "Profile details" from the left menu.
5- Add your new email address as follow:
View on browser: click on contact & basic info and click edit 🖋️
View on mobile: scroll down until "contact info" and click edit 🖋️
The option for adding the address looks as follow:
