You mean the thing that was only suitable for real world use by in-the-wild development teams last year? Something no repo provider really fully supports even to this day?

From HG's own documentation (https://www.mercurial-scm.org/wiki/ChangesetEvolution):

>While well on the way, the full implementation of the changeset evolution concept is still in progress.

HG's entire system requires far more investment in the tool than git will ever ask of you. And you probably don't need the feature in the first place. I consider changeset evolution a nifty feature, but it's also a devop smell in my book.