@Michael Lee, Thanks for posting in Q&A. Based on my researching, I didn't find the app configuration key to manage the "camera upload" for iOS OneDrive app.
https://video2.skills-academy.com/en-us/mem/intune/apps/app-configuration-policies-use-ios
You can feedback in the following link to see if the configuration ley can be added in the future:
https://feedbackportal.microsoft.com/feedback/forum/e3f04660-2c1c-ec11-b6e7-0022481f8472
Thanks for your understanding.
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