Any request to open a new page, from either the pages themselves or from the OS, prefers a new tab. If there are multiple windows in which it could open a new tab, it prefers the latest. If you want to split a tab off into a new window, you can.
With Explorer, any OS request for a folder that isn’t already open creates a new window and there doesn’t appear to be any way to prevent that.
The browsers solved this long ago.
Any request to open a new page, from either the pages themselves or from the OS, prefers a new tab. If there are multiple windows in which it could open a new tab, it prefers the latest. If you want to split a tab off into a new window, you can.
With Explorer, any OS request for a folder that isn’t already open creates a new window and there doesn’t appear to be any way to prevent that.