Mercurial was not better. Features like rebase /squash are not native to mercurial (even though they since added extensions for this) and the tool had a very rigid view of the commit history. I had all my projects on Mercurial for several years after using SVN, because it felt more similar to SVN and I had no mental concept of why you'd ever want something so crazy as "rebase" - commit histories looked the way I always remembered them looking with SVN, with tons of tiny commits like "fix comma", "fix syntax", and no steady concept of a commit hash linked to a complete, working change, because that was something I had never seen before. Basically I just didn't get it.

Today my workflow is based on git + gerrit code review (which is heavily based around git), or in other areas github pull requests, and there is no such thing as a series of little commits that all hodge-podge together to form a particular change to the code, we tailor changes to be perfect, we push -f to keep each commit in the series to be a full and CI-tested story of a change, then we squash-merge them. My use with git is 100% all day things that were impossible with Mercurial back when I used it, if there are extensions for these things now, they are afterthoughts, git understood these concepts from the beginning.