Comment by masklinn

Mercurial still has some life to it (excluding Meta’s fork of it), jj is slowly gaining, fossil exists.

And afaik P4 still does good business, because DVCS in general and git in particular remain pretty poor at dealing with large binary assets so it’s really not great for e.g. large gamedev. Unity actually purchased PlasticSCM a few years back, and has it as part of their cloud offering.

Google uses its own VCS called Piper which they developed when they outgrew P4.