Right but this misses the point that you’re not removing complexity by shuffling it down a layer. Is it really an advantage to have multiple “thin browsers” if there are only two or three “browser engines” anyway due to their complexity? Further by pushing the complexity down a layer you inevitably make it slower.

Aside from which from a market perspective most small browser projects already are a thin layer on top of Chromium. So really what’s gained here?

Particularly if you want to write a novel app using WASM and WebGPU/WebGL only you can already with the tiniest amount of glue to spin the handle. And this can be a useful approach but should it be the default?