In the details for potential URL in memory, it says that's for .onion address.
Thank you for posting the report, after I read through it, everything to me is clean and clear. The FDroid apk does not communicate with any outside resource that is not part of the anonymous network.
The Github version relies on Google, and to me nothing in the report suggeats that the FDroid version communicates with Google services.
Your argument is purely ideological and reflection of your lack of experience travelling various countries that do not speak English. For example, go to a country where 100% of all business, companies, and offices, use Whatsapp because it's the most stable form of phone service they have so they don't have to pay for each phone call and pay for each text message.