FWIW, most of the time I don’t even bother naming my branches. ‘jj git push -C` even handles naming for me when I want to make a PR, but that’s mostly the only time I bother.

When I do need to advance a branch name, `jj bookmark advance` is easy enough. And it works great with the model that `jj git push` pushes all out-of-sync branches. In this model, advancing a bookmark is the reliable signal that I’m ready to share work, not simply “having authored a commit”.