Any chat app would have issues with battery optimizations. Solution is usually to use the mobile OS vendors push notification infrastructure. Work on that in XM

Any chat app would have issues with battery optimizations. Solution is usually to use the mobile OS vendors push notification infrastructure. Work on that in XMPP started around 2015 and most popular clients and servers should have some support by now. It's tricky to make something nice while the platform is working against you tho, especially while those push notification systems use/d XMPP themselves.