I think transparency is always good, although one worry I do have is that forcing benign declarations (i.e. what amounts to disclosing that when you turn on X,

I think transparency is always good, although one worry I do have is that forcing benign declarations (i.e. what amounts to disclosing that when you turn on X, it does X), creates something similar to "alert fatigue". People don't read privacy policies. A privacy preserving app that has to put a long-winded policy, despite not leeching your data, becomes even harder to distinguish from a cloud-based email app that scans all your emails, and holds your email usernames and passwords, and harvests contact-name pairings and sells email signature contact info and job titles to lead-harvesting data brokers. I don't know if that's the best outcome for users, as it might make every policy look the same (long, complex, and wordy, with scary legal language they are forced to add by the platform gatekeeper).