I installed Signal from Play Store and it uses Google for push notifications. But still, Signal is consuming almost all of my battery. It is such an inefficient piece of software that I unfortunately rely on to chat with my family and friends.
To reduce battery usage, I turned off "Allow background usage". But the moment I navigate back from that screen, it turns the toggle back to "On". Signal keeps running in background for more that 6 hours while foreground usage is just an hour.
My question is how Signal could override GrapheneOS settings? And what can I do to fully stop it from sucking all my battery. Is it a GrapheneOS bug or Signal's?
Thank you.