Limp Biscuit it is then.

Everyone will surely be rushing to be the first one to disseminate this new technology!

What do the British call biscuits?

https://chefjar.com/wp-content/uploads/2021/05/popeyes-biscu...

The closest thing is https://en.wikipedia.org/wiki/Scone.

I've had something (in the US) that was called a "scone", and it was rigid, which disqualifies it from being similar to a biscuit in my mind.

Is that generally true of scones?

The thing the US call scones is different from the thing the UK calls "scone".