Hi @lulu2554 Welcome to the forum, the 'cloud bread' that has been in the media last week is same/very similar to a bread thats been around a while called oopsie bread on many low-carb / diabetic forums. Though this wasn't mentioned on any media I saw.
A word of caution it isn't carb -free, its low carb compared to traditional bread.
I like oopsie bread, I add extra ground flax seeds for fibre and it adds a bit of structure to the bread. I use flavourings too such as herbs or seeds or garlic etc.