Hi @Matthias Baetens
Welcome to Q&A forum ~
At current time, there are no direct options to meet your needs.
It's recommended to raise this requirenment to Microsoft Feedback community.
Based on my tests, if you use "Move to or Copy to" feature to copy shared files to My Files folder, the file won't be a shared file as before.
But in specific cases: using OneDrive for Business, for shared folders with you from other users, you can create shortcuts to "My files".
- Go to OneDrive online > Shared > Shared with you > Select the shared folder > Click "Add shortcut to My file".
- Then you can organize the shortcuts together in one folder manually. Move the shortcuts to one folder, and the folder owner won't be changed.
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