Uploading speech-to-text to OpenAI? Regular communication with Google? Using Google for assisted GPS? Giving a bunch of Google apps privileged access (if you need them for e.g. Android Auto)?

https://www.kuketz-blog.de/e-datenschutzfreundlich-bedeutet-...

https://gitlab.e.foundation/e/os/GmsCore/-/blob/a9e102567518...

https://forum.fairphone.com/t/e-os-betrays-users-privacy-ope...

https://eylenburg.github.io/android_comparison.htm

Well and besides that only shipping ASBs and no other security updates outside major Android releases (and both usually late). Using heavily outdated kernel trees (e.g. FP4 is using a Linux kernel patch level that hasn't been updated since 2020!), outdated vendor firmware blobs, etc.

It might work, but it is not very secure, nor very private.

The OS is working well, but have privacy and security concerns. Is it better than a stock OS? I don't know, maybe, maybe not, it depends on the stock OS.