That's for May 2019. Here's October 2020:

https://bit.ly/2IQgrix

In the last month Edge went from 0.67% to 2.09%.

  May 2019
    Firefox 6.52%
    Edge 0.03%
  
  September 2020
    Firefox 5.89%
    Edge 0.67%
  
  October 2020
    Firefox 5.75%
    Edge 2.09%

Huh, I had no idea Edge was even available on non-Windows platforms!

It's coming for Linux too [0].

Unfortunately, they'll be removing the webRequest API [1] which was the only reason I would have wanted to use it. This will happen probably whenever Google deprecates Manifest v2 and Manifest v3 becomes the only interface for extensions, which will stop uBlock Origin from working.

Other than that, when I tried Edge it didn't work perfectly on every site. But, it will be nice to have another non-Google browser to choose from.

[0] https://blogs.windows.com/msedgedev/2020/10/20/microsoft-edg...

[1] https://www.theregister.com/2020/10/15/microsoft_adopting_go...

Isn't edge a Google browser?

It is.

Edge is just a reskinned Chrome now.

No, they replaced all the Google services with Microsoft implementations.