You say this like chromium is not the best browser experience we have. There used to be a point where everyone had to build websites for 5 different web engines

You say this like chromium is not the best browser experience we have. There used to be a point where everyone had to build websites for 5 different web engines, each of which had their own quirks. Now that we just build for one it's so much easier, and while chromium still does a great job I'm not sure why we'd want to create another, likely worse, engine and browser.