When not using Google Play services (e.g. GrapheneOS, LineageOS users), Signal can be a real battery drain. Molly with UnifiedPush on the other hand is extremely battery efficient.
Here’s how to set this up, using Nextcloud as the UnifiedPush provider.
What do you use it for? I have my phone sitting on a small holder/stand next to my screen both at home and at work. What’s your use case, if you don’t mind sharing?