[floatboth]

WebRender is not just a "plan" but a real thing (I'm using it right now), and it's fully retained.

Immediate doesn't mean just redrawing everything on every frame, immediate means what's described in the article — not keeping state. WR aggressively relies on kept state to optimize rendering of each frame as much as possible.

[etaioinshrdlu]

Very interesting, thank you.