- `brew list` doesn't include apps you install from 3rd party taps, or casks, so `brew list --full-name` + `brew list --full-name --cask` is better

- Many apps store their config and user data outside of the home dir. I always find it dishonest when people say backing up home is enough on Linux. You did say "mostly ready to go", but that's exactly the tricky and important part that most people pretend doesn't exist

E.g. Docker volumes are in /var/lib/docker

So /etc/... and /var/lib are generally worth checking as well, but that probably still doesn't cover everything, as not all apps behave as maybe XDG specifies.