Ha, I guess I understand your use case and why it can be frustrating for the several clicks. With how windows work, I’m guessing it’s not possible to show the drawer over detached windows without a major refactor of the drawer since it’s actually part of the main window. It would have to be a separate window always, which would end up being super annoying for other reasons.
Long story short, I guess it comes down to “it’s likely impossible to get the use case you want while still keeping it as a quick drawer, with how windows in OS’s typically work”.
However, the Content Drawer is available in both the main window and other windows (you can see it at the bottom of your Blueprint window), so I guess just use Ctrl+Space in that window instead in this particular use case