I don't think Edge is looking for hegemony in the web at this point. Chromium-based Edge is marketed like Brave but with more "Corporate" friendliness. Edge is Microsoft barely holding to a legitimate toehold in web standards processes, with a skeleton crew as small as possible of developers. This Edge looks like the late stages of IE6: Microsoft has to ship a browser with Windows, because browsers are an important part of every OS, doesn't want to cede control to someone else's brand so needed to rebrand a "white label product" (and Chromium is now the largest "white label" for better and a lot worse), but overall got tired of paying for development staff on a money losing "product" and wants to focus on products that actually bring in revenue. (Which is also why Edge is the noisy home of coupon products and all of Microsoft consumer AI ambitions and so forth. You can see that's stuff making the company money, so that's why they are putting the most work into that kind of stuff.)