PSA: I strongly recommend not to use Cobalt (unless of course you are a Google employee, with support from Cobalt team).

Cobalt's roadmap is 100% Youtube on TV roadmap. I've never seen anyone use Cobalt professionally for anything else. Even Android TV doesn't trust Cobalt for anything but Youtube.

It mentions "subset of HTML5" which begs the question of "which subset", and the answer is pretty much "whatever Youtube on TV" uses.

Please note that I'm not speaking of the actual quality of the project which in my experience is fine.

If you're wondering what to use then for an embedded Linux web browser: I don't have a professional experience on it, but most people I know use WPE WebKit/COG