Why does Microsoft abandon its EdgeHTML rendering engine to switch to Chromium for its Edge browser?
The first thing to understand is that Microsoft is not abandoning its Edge browser as such. It is simply its EdgeHTML rendering engine that is abandoned in favor of Chromium. The main reason is that EdgeHTML had many problems that were too expensive to fix.
In fact, many web developers no longer even bothered to test their websites on Edge, which led to serious rendering problems on Windows 10 in particular. Edge was therefore completely unusable on Windows 10. A major problem for Microsoft.
Replacing EdgeHTML with Chromium will help Microsoft to ensure that Edge will make the web pages look good since most web developers test their websites to display them correctly on Google Chrome which has an increasing market share.
For Microsoft, it is also an opportunity to confirm its new commitment to open source. Chromium is very good and Microsoft will not be able to do better with EdgeHTML. Under these conditions, why reinvent the wheel? The open source spirit is quite clear in this area and as it stands, Microsoft is only following it.
In addition, it is not the rendering engine that makes money on a web browser but everything that happens at the top level: the default search engine is selected or the home page. At this level, Microsoft will keep its hand and can hope to get more out of it if they can improve Edge with Chromium and thus convince more users in the end.
In conclusion, I would say that for Microsoft, there are only advantages to making this transition to Chromium. For developers, it is also an excellent decision since there will be one less browser to test. Web standards will therefore be better respected in general.
And what do you think of this transition from Microsoft to Chromium for its Edge web browser?