That doesn’t mean encryption won’t work, just that you may not get instant notification of messages.

I wouldn't be so sure about that: https://twitter.com/moxie/status/1158852855291269120

Would be interesting to hear his opinion on this. It's awesome anyway that all of the source is just in the open. I often use it as a sanity check for my own code when I'm dealing with messaging and VoIP.

You can test it yourself, by turning off background permissions. You will still receive messages.

Background processing simply allows it to have the message ready for you by the time you open the app.

Yes, but I did not mention security. I commented on "I don’t think Signal uses it". I should've quoted it.