Files shared with a link
Google Drive files that are shared with a link will be copied, but the share link will be lost. You must share the file in SharePoint once the file is migrated.
For more information, see Google Drive file guest or shareable links are not supported.
Migrated files do not look exactly as they do in Google Drive
Some files may not look exactly as they do in Google Drive.
We use the export function when we download files from Google Drive to your SharePoint site. The export function converts a file from Google Drive to Microsoft Office format. The export function is imperfect and can make the migrated file look slightly different.
This will only happen to files in Google format since we have to use Google to transform them.
Migrating shared files and folders
When you migrate your Google Drive files to a different destination than OneDrive for Business, the shared files will behave differently at the destination.
Instead of sharing the file, the migration tool will apply a set of permissions that allows access to the people with which the content was shared in Google Drive. They will not find the files in their own folders or a Shared with me view, but they will have access to the files if they go to their location at the destination.
If you want the files to be easily found by users in their Shared with me view, the best way to achieve it is to migrate to OneDrive for Business.
Note: Shared with me files are not preserved when using the modern experience in a OneDrive for Business destination. Use the classic OneDrive for Business experience to preserve Shared with me files.
To prevent duplicating files, you should always migrate using the My Documents view (the default view) when migrating multiple users' files. This will only copy the files if the user owns the file. For example, if you copy the files for users A and B to OneDrive for Business, and user A has shared a file with user B. Since user A is the file's owner, it will be copied into his OneDrive for Business and shared with user B so that it appears under his Shared with me view in OneDrive for Business. However, if you use the Shared with me or All Documents view to perform the migration in the ShareGate migration tool, the file will also be copied into user B's OneDrive for Business, which creates a duplicate. This is a problem since the changes made to one file will not be reflected in the other. These views allow you to copy files even if the user is not the owner, which can be helpful in some scenarios, but you have to be mindful of creating duplicates.