How I'm using git/Github has changed with agentic coding. However, I'm not using swarms of agents to write code, so it's bit hard for me to decipher the JTBD of gitbutler.
Another take I've seen is https://agentrepo.com/, which is light-weighted hosted git that's easy for agents to use (no accounts, no API keys, public repos are free). There are large parts of the GitHub experience I'm no longer using (mostly driving from Claude), so I think this is an interesting take.