If you need to share a file with a group of people you should place the file in a Team.
When a file is stored in OneDrive it is owned by a person. If that person leaves the organization, then access to the file is removed for everyone. When a file is stored in a Team then all people in the Team will have access to the file and maintain access to the file. By default, Anonymous Linking is NOT available on a Team.
If you would like to allow anonymous linking from a Team, you will need to contact the IT Service Desk and place a request. You may contact the IT Service Desk at 614-688-4357 (HELP), Self Service, or servicedesk@osu.edu.