This isn't a new bug, it was present in MacOS Tahoe, but what happened to the tabs in the Maps app? The View menu still has Show Tab Bar and Show All Tabs itms, but they are always greyed-out. Cmd-T doesn't open a new tab, as was the case before Tahoe. (I count this as a bug in that the UI seems inconsistent with the function.) If anyone knows how to regain access to tabs, I'd love to hear it.