In my region they switched to MeshCore, basically all at once. The problem with Reticulum is that since it is hard to send an unencrypted packet, the experience of group chats was not great. Routing is also tuned for one to one communication. MeshCore does an interesting version of flood routing. But the stack is not very mature. The official app and a few others work well, but it's hard to integrate with machine to machine communication. What is nice though is that you can have small nodes without the need for a Linux / Android machine to route and store traffic. Even work as full clients. So a simple battery powered esp32 node is all you need. For Reticulum you really need a better machine and esp32+lora is just a radio. There were efforts to do it in Reticulum too, but that's very alpha. I think this is like with Nostr, when I first saw the design, I thought it's retarded and it will never work. Yet here we are. Problems were fixed and I find myself writing Nostr apps. Because adoption matters way more than how beautiful the technology is. I consider Reticulum a work of art. It's beautiful. Every line of code makes sense, it all plays together, it feels like a masterpiece of coding.