Nice to see excitement around the proposed html-in-canvas feature, but remember you can already put canvas behind/atop HTML elements.

The benefits of this new feature are:

➡️ Readbacks (eg sending to a VideoEncoder)
➡️ Showing HTML on non-planar shapes
➡️ Using shaders on HTML

@jaffathecake I recently found another benefit: being able to programmatically generate an image from rendered HTML/CSS content.
@andreu yes! Fwiw I count that as "readback"