If you right-click a side bar item, one of the options is ‘Reveal in Finder’ (probably similar on Windows). I think it would be very nice if this was also an option when right-clicking on a tab.
Currently, I have to click ‘Open File’ and then click ‘Show in Finder’ within the new menu that opens. This is janky and can be very much improved.
Something like this. If the tab doesn’t represent an opened file or the file has been displaced, it should be grayed out or removed.