Terminology
Doctor
A command that lists what a project holds that the engine cannot draw, before you render.
doctor goes through every frame of a project without the GPU. It reports each element and property the engine cannot draw, and the frames where it happens.
npx kinetograph doctor src/index.tsx --range 0..120Unsupported content is drawn without, or approximated, and a warning names it. Nothing falls back to a browser. This is decided frame by frame.
To make it an error, add --strict to render, still or strip. The first frame with unsupported content stops the command with UNSUPPORTED_CONTENT, and no output file is left behind.
Run doctor with no entry to see the Node version, the platform, whether the addon loaded and which renderer is in use.