DISPLAY A COMPANY OR INDIVIDUAL SHARED FOLDER
IN THE ONEDRIVE DESKTOP APP...
https://gorazy.com/blog/onedrive-add-...
STEP BY STEP...
Assume in the following steps that the folder has already been shared with you:
Login to your 365 profile (https://login.microsoftonline.com)
Click on the OneDrive icon (left pane)
Click on shared (left pane)
Click once to tick and highlight the shared folder
From the top menu, click add shortcut to my files