Saying which browser is the best these days is like saying which house in the village makes the best fried meat. Everyone is convinced that theirs is the best.
But what are the criteria by which we can objectively decide whether a browser is good or not? The short answer is: it depends on when and what we use it for.
Why does the timing matter? Because the evolution of computer hardware and computer networks has greatly influenced the current expectations for a browser. For example, if you showed an IT professional the current memory requirements of Chrome in 2010, they probably wouldn't even come close to the download page, but considering that 8 GB of RAM in a computer is no longer considered a curiosity, this is no longer a problem these days. Similarly, in the era of dial-up internet, the biggest expectation for a browser was that it would keep the internet connection alive and download a 1.5Mb file without any problems.
In contrast, most people these days listen to music on YouTube in 4K (because it sounds better that way). Accordingly, at the dawn of the internet, the main consideration when choosing a browser was how quickly it loaded various web pages. Later, when the difference in loading times was minimized due to internet speed, the main difference was manifested in the ability to display more complex content (HTML5, 3D content).
In 2020, the main battleground is no longer on the technology side, but rather in the services provided to users, such as Google or Microsoft account integration, password management, translation, security services, availability on multiple devices, synchronization between devices, etc. In fact, the time it takes for the user to reach the desired content depends largely on the UI, in addition to the technology.
You may ask, if the difference between browsers is so small, why is it even worth worrying about it? Because a web developer must always ensure that his site is accessible to as many users as possible without any problems. Accordingly, it is necessary to measure which browser the given site is used by most people, and based on that, the 2-3 on which the site works perfectly consistently should be chosen. These are mostly Chrome, Edge and Firefox. In the past, this list also included Internet Explorer, Safari and Opera, but since Internet Explorer is on the verge of extinction and Opera has switched to the Chromium engine, the above list remains. At the same time, it is worth keeping the new generation in mind, as browsers called Brave and Vivaldi are emerging in popularity.