/usr/local/sbin and not in
/usr/local/bin so it’s not a part of your
$PATH by default.
Yes, you can add it manually via
.zprofile or something similar, but there is a native way to add new paths to all shells of all users:
echo '/usr/local/sbin' | tee -a /etc/paths
Or you can add a new entry to
echo '/usr/local/sbin' | tee -a /etc/paths.d/homebrew