A Microsoft file hosting and synchronization service.
Dear Jordi Lopez,
Good day!!
I understand your concern and to my knowledge, when the Camera Backup feature is enabled on the OneDrive app on the mobile devices, the camera photos on the mobile devices are directly uploaded to the Camera Roll folder and there is no setting to change the location of the folder.
I agree with you having the ability to change the location for the Camera Backup feature on the OneDrive app on the mobile devices will benefit the users and I suggest you to add your valuable feedback in the OneDrive · Community (microsoft.com) which is the best place to share our ideas and improve the Microsoft products.
Moreover, I believe you can setup the custom Power Automate flow to move the camera photos that are uploaded to Camera Roll folder to the shared folders automatically and I would like to suggest you give a shot by posting your concern in the Microsoft Power Automate Community - Power Platform Community to get the detailed help from the Power Automate experts on the possibility of your requirement.
Appreciate your patience and understanding. Have a great day!!
Best Regards,
Sophia