Oh, frabjous day! This morning, as I opened up Napple Notes, Lo and behold! The top of my page had a NavBar (of sorts) complete with a Blogger logo, and a message about Cookies.
This reminded me that I had opted out of as many cookies as possible, some months back... Now, perhaps I shall experiment with allowing some again, to monitor the effect that has. It's certainly brought back my longed for NavBar, for starters. Yay!
At least for the moment, I have no wish to yell 'Pesto Houmous!' in the direction of Blogger!