There must be some kind of split in how people work or something. I’ve never had the desire to jump around the git tree. I never squash commits. I basically never stash changes. All the things that people say jj makes easier are things I never even want to do. Not because they’re not easy with git, but because it sounds hard to keep straight in my head.
Maybe. Different organisations work at different paces and with different contention rates. If you're on a small team and less being tugged about then you might not find value with this stuff.
But I frequently have cases where I have some changes I'm making to repo `acme`. I'll put a PR up for review and then I'll start on a second PR for the same repo. I stack these commits on top of my previous PR. If I then notice a problem in the earlier work I can easily fix it and have the changes ripple down to the later PR. Or if somebody else merges something in against `main` it's really easy using `jj rebase` to move my commits against the new version of `main`. With a single `jj rebase` I can move all of my stacked PRs over to the new version of `main` and have every stacked PR updated.