Microsoft problem now is that for 15+ years people have been told and essentially trained to install a new browser if they want a good internet experience on Windows. And that is Microsoft's fault for shipping a shitty browser with their OS for multiple decades. That's why they had to drop the "Internet Explorer" branding. It became synonymous with "browser you can't use if you want to use any modern website" during the late 00s/early 2010s.
Obviously, Edge uses Chromium now but that is a relatively recent develop (and a technical detail that the average user isn't even going to know). So it's not enough to undo 20 years of "the browser that comes with Windows is crap" inertia right away.
That's not been true for a while. IT preinstall Chrome in most companies nowadays, and obviously it's already on the phones and tablet you buy for the home.
Yes, MS dropped the ball after killing Netscape and being humbled by antitrust laws. But the current situation is as much a product of Google's "growth hacks" and mobile monopoly.
Most tablets sold are iPads. They don't have Chrome pre-installed. In North America, most phones are iPhones that don't have Chrome pre-installed. Most personal laptops are either Windows machines or Macs which don't have Chrome installed. Its pretty disingenuous to pretend as if Chrome market share comes from devices with Chrome preinstalled. People go out of their way to install Chrome.
Some freeware also contained an (enabled by default!) option to install Chrome and make it the default browser. CCleaner was guilty of it if I recall correctly.
My Android phone came with Chrome which I can't uninstall, just disable. Chrome is just there on millions of mobile devices, it was already on millions of PCs and has been for years, so people are used to that, the synergies between devices and services makes it easy to stay and hard to leave.