Sure but IE back then was also severely lacking in pretty much every regard and stopped any tangible development. At least every developer I know back then swit

Sure but IE back then was also severely lacking in pretty much every regard and stopped any tangible development. At least every developer I know back then switched away from it primarly because of developer tooling available in other browsers secondarly because of lack of other features. With todays major browsers landscape the differences are much more subtle. From a developer productivity perspectice I don't think it matters that much anymore, none is really a 10x or even a 3x browser over the others. So I don't see a huge developer exodus happing for Chrome as long as they don't completely cripple their web dev experience.