Yes, that would be fine. I'm on Windows 10, using the latest Joplin (3.0.6), but I do not see anything in the title bar of the window. Was this done just for Mac maybe? Or is there a setting for it somewhere that I'm missing?
Looking again - I'm confused. I see it marked as 'completed' on Apr 6, 2021, then reverted on May 4, 2021. Is this implemented now or not? Ah, never mind, I found the full discussion. Perhaps I'll tack some thoughts on to that. [later] Testing - v1.8.2 - Title Bar Path Format (Minor) - #21 by LeeBreisacher
btw, the place I put the notebook title is to the left of the date in the note header. I was just experimenting.