Where the bar appears
Auto-switching folders by site, and keeping the bar out of the way on the sites where you don’t want it.
Auto-switch: the bar changes folder by site, on its own
Set up rules that switch the active folder automatically based on which domain you're on, plus the one-click Work sites rule pack.
Hide the bar on some sites (or show it only on some)
Every way to keep the second bookmark bar out of the way: excluded sites, path-limited entries, allowlist mode, and the quick hide shortcut.