Hi,
If you’re a civil servant you can access Tchap (https://www.tchap.gouv.fr/) which is the French State Secure Instant Messaging System.
I have opened a room for talking about LoRa and The Things Network : https://www.tchap.gouv.fr/#/room/#LoRaWANNymUiRo:agent.agriculture.tchap.gouv.fr
See you there !