Game developers currently use Git/GitLFS in smaller teams, but tend to switch to Perforce when their teams get larger since Git/GitLFS lacks features critical for game development, such as file locking and handling large repositories. Eventually, I plan on this being similar to closed-source internal tools like Google's Piper and Facebook's Sapling to enable work on large monorepos efficiently.
jamhub.dev is a hosted version of the source. Let me know if you have any questions!