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- The science behind Web Vitals was kind of weak, referencing many studies that Gilles Dubuc showed us were based more on feelings than science.
- You could only get those metrics from Chromium. Are they really Google Web Vitals if you only can get them from one of the browser engines? I think if we’re introducing something that’s supposed to be vital for all users, it should exist in all browsers.
- Almost all performance tools implemented the metrics (for Chrome) immediately. Google said jump, and web performance tool vendors said: ‘How high?’. A little more caution would have been good. I also felt the pressure of adding those metrics to the tools I build. Google’s monopoly on web performance metrics is not good for the web, I think.
