The weakness of DHT proxies exists because only the developers of the publishing app can send push notifications, which is a restriction imposed by Google and Apple. One way to make UnifiedPush work properly might be to look for an older distributor or compile OpenDHT from source as a proxy server yourself. Not all users are ready for their devices to become servers, so directly switching to a fully distributed application is very difficult. Additionally, apps that use decentralized servers can also encourage users to pay attention to security and privacy. You can check out this post: