According to the Graph API, you can query all OneDrive files using the $filter query parameter to retrieve files named "共有テスト".
The query request is as follows:
https://graph.microsoft.com/v1.0/me/drive/root/children?$filter=startswith(name,'共')
Here are my test results.
For more details, see the link below:
https://learn.microsoft.com/en-us/graph/api/driveitem-list-children?view=graph-rest-1.0&tabs=http
https://learn.microsoft.com/en-us/graph/filter-query-parameter?tabs=http
Hope this helps.
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