We have visited and revisited this over the years and never officially supported any of the networks as it seemed to be too early. Do you agree? Here is an example https://hackaday.com/2020/01/30/this-is-it-for-the-particle-mesh-network/
While not ideal for some uses, WiFi still seem to be the strongest option. Which is what we have focused on for TinyCLR 2.0.