I heard from a gas guy that this is to ensure that only connectors made for gas usage are used and people don’t build crazy contraptions with plumber gear for flammable gases… Kinda makes sense.

You are welcome!

Try Threema… Open source, Swiss based, audited. As you and your data are not the product of this company, it costs 5 bucks. Less than a Starbucks coffee, but I still have a hard time convincing my peers to switch. (Not affiliated with Threema, just a fan)