Most of the time it doesn't actually matter that your browser is missing support for webusb or webwhatever but every now and then you hit a site that uses it an

Most of the time it doesn't actually matter that your browser is missing support for webusb or webwhatever but every now and then you hit a site that uses it and it creates a user experience of "Just use chrome and it always works" A good demo is Mozilla spent about 7 years and 43,000 commits on Servo which is JUST a rendering engine and not any of the JS apis and it still doesn't actually work well enough to render most sites.