Even better (IMHO!) is `git config branch.sort -committerdate` (note the `-`). This will sort newest committer date first.
Rebase an old branch and it suddenly looks recent again. The rewritten tip gets a fresh committer date.
I have this as an alias in my .zshrc!! Very handy
Even better, "hey, chat GPT, list my branches by commit date."
I know that's not a popular answer, but I'm just trying to demonstrate the reality that this kind of knowledge isn't specialized anymore.
`git config --global branch.sort -committerdate`