Quite the opposite of my perception.

I started with git. Then I got a job and for a while I worked only in Windows. At the time, I looked into git for Windows, and while everyone said it was stable, everyone also said that it was unofficial - the Git development team had stated clearly they were not interested in maintaining a Windows version.

I didn't want to be in the position to justify an unofficial tool to my employer, so I looked at Mercurial - Windows support has been in there since the first day. So I switched to Mercurial. In almost a decade of using it on Windows, I have never had any problems.

Mercurial is great - I've never come across a use case where git is clearly better.