the best browser is the one which suits the best your needs and use
This is objectively false. The best browser is the one that gets the job done and doesn’t have endless absolutely terrible security vulnerabilities (e.g. IE before they switched to Edge which is just Chrome) or intentionally leaks your private information (e.g. Edge leaking every site you visit to Bing and Chrome doing the same but with Google).
Also, from a performance perspective “the best” is obviously objectively measurable and Firefox just took the crown which is what the post is all about. Realistically though both Chrome and Firefox have had completely acceptable levels of performance (imperceptible differences to normal humans) for like a decade. So it’s probably not that big a deal.
A bigger deal for normies using their browser IMHO is memory utilization which is a much bigger factor than, “how fast does the browser load and run HTML, CSS, and JavaScript?” Just ask Google how much more memory efficient Firefox is! LOL