One suggestion for an addition to the section on FOSS: Related to the issue of not being able to modify the source of apps we use, we also can't verify that an "open source" app on iOS is built from its claimed source code. We just have to trust the developer. This blocks true auditing of iOS apps for data privacy practices, something we know is needed given that the "privacy labels" are often deceptive https://archive.ph/Ak6qU. As such, this is a data security issue as much as a user freedom issue.