Microsoft gave the surprise this year with Microsoft Edge Chromium, its new browser that as its name says is based on Chromium, the open-source project on which Google Chrome is also based. Thus, Apple has famously been in closed scrutiny over its software efforts over the years. From iOS to macOS, they have never really felt the need to associate themselves with open source material in general.
The screenshots that have been showcased looks like Apple may be transitioning the Safari web browser over to Chromium in a move similar to what Microsoft has done recently with Edge. It is shocking, honestly, to consider Apple bending this way, but it makes a lot of sense in the long run.
As with Microsoft Edge, you probably want more flexibility. We would then have one less engine. Good for the developers likewise for website operators. But some will certainly not be happy that another browser also sets Chromium. But it's Chromium, not the Chrome itself.
The Chromium engine that is based on Google Chrome has become the standard of today's web industry. Many browsers, starting with Opera and ending with Microsoft Edge, have switched to it, abandoning their own engines. Experts have already expressed concern, since the time when Microsoft Internet Explorer 6 was the main browser on the planet that has been forgotten, causing stagnation in Web development.