Many years ago, the most used browser in the world was Internet Explorer. And it's not that he was the best, far from it; it was simply the default browser on Windows. Even a server used it. The rules of the game changed when Google launched its Chrome, which has become the browser of choice for users. To regain the trust of its community, Microsoft released Edge, but this was not enough because it was based on EdgeHTML.
A "sorpasso" has occurred this March. In February, Firefox had 7.57% of the market share, with Edge following it with 7.38%. In March, Edge is up to 7.59% and Firefox is down to 7.19%. At the end of 2019, Microsoft's browser was just over 6% of the market share, so we can assure that it has had a lot to do with the fact that they started to base their browser on the Google engine, Chromium.
Microsoft Edge is fine with the Chromium engine
Exceed the market share of Chrome, almost 70%, it's going to be an impossible task, but Edge is likely to continue to increase yours in the coming months. That it is based on Chromium allows you to use extensions from the Chrome Store and that it is installed by default will mean that many do not have to install third-party software. This is something that happens in Apple operating systems, which remain in Safari due to the integration.
What is surprising is that Internet Explorer continue with such a high market share today, at 5.87%. The explanation for this is that the web is not moving as fast as it should and there are some pages that are still compatible only with the old Microsoft browser. Or well, that's what many users must believe, because Edge Chromium is compatible with Internet Explorer.
In any case, it seems that Microsoft has made the right move in its latest move. What will happen when they launch su Linux version remains to be seen.
Further information: NetMarketShare.