I don't think they could get their own browser engine to function with the speed and features of the other browser so why not go with the best (so to speak). This is a win, win for everyone. A independent browser that doesn't rely on the core Windows ecosystem (yet) and Microsoft is even submitting code to improve the browser.
I never could get used to Edge, I use SRWare Iron Portable solely for YouTube, and Firefox Portable for everywhere else.
Interesting because the Lon.TV YouTube channel recommends the use of Edge on low-end budget systems in his video reviews of low-end budget systems, since Edge seems to have less of performance impact. So I wonder how Microsoft will cater if at all to low-end systems with say a max of 2GB-4GB RAM that cost anywhere from $180-$400 dollars like inexpensive laptops, etc. I definitely don't think a Chrome/Chromium based browser would play nice on some of those due to RAM, resource, and CPU requirements.
- This could pose a problem for third party software who use the "rendering engine" of Edge and perhaps even Internet Explorer (like e.g. Outlook Classic). We'll have to wait and see what the future will bring.
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- This could pose a problem for third party software who use the "rendering engine" of Edge and perhaps even Internet Explorer (like e.g. Outlook Classic).
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I would imagine the rendering engine would be left intact, likely parts of the OS require it like in previous Windows versions.