What mobile OS do you use that allows an app to maintain a persistent TCP connection forever? Honest question. Last I checked, even Lineage/Graphene/etc will ki

What mobile OS do you use that allows an app to maintain a persistent TCP connection forever? Honest question. Last I checked, even Lineage/Graphene/etc will kill a background app after some amount of time. Doesn't matter if it's an hour or three days; if it ever happens, that's a deal breaker. I think the right solution is to use a different notification service, not controlled by Google or Apple, not to get rid of the concept altogether.