Outlook 365
on the side bar click the more apps icon
Right Click on folders and click pin
You can now view the shared inbox folder
Outlook 2019
Click the 3 dots at the bottom of the screen and select Folder
You can now view the shared inbox folder
on the side bar click the more apps icon
Right Click on folders and click pin
You can now view the shared inbox folder
Click the 3 dots at the bottom of the screen and select Folder
You can now view the shared inbox folder