This surprises me. I had assumed incorrectly that flexible environments were the future of App Engine.

I'm pretty happy with using flexible environment for nodejs. However, the fact that this supports scaling to zero, and has headless chrome built-in, I could see using this for a low-cost headless Chrome environment.

I've had several projects where I've wanted a node server separate from the main app server on which I could use headless Chrome for pdf generation. It's never easy to justify the cost of an extra instance for that purpose. But with a zero scale capability, this could presumably be cheaper and easier to justify.