@Alberto Sánchez, Thanks for posting in our Q&A.
From your description, I know you want to configure the OneDrive app on our iOS/iPadOS devices to force the synchronization of the images taken with the camera app.
Based on my research, I didn't find the app configuration key to manage this feature for iOS OneDrive app.
https://learn.microsoft.com/en-us/mem/intune/apps/app-configuration-policies-use-ios
If you want Intune to implement this feature, you can submit your feedback to Intune.
https://feedbackportal.microsoft.com/feedback/forum/e3f04660-2c1c-ec11-b6e7-0022481f8472
Thanks for your understanding.
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