I thoroughly enjoyed almost everything about Black Widow from beginning to end. Those opening credits were by far the best I've seen in the MCU, and maybe even anything. Smells Like Teen Spirit was a fitting choice, and I loved the arrangement- both the music and score were great. I've watched and listened to the credits, and song several times today. The direction was done well, as well as the screenwriting (tight and polished), editing, and cinematography- Marvel seems to really be doing better with color grading. And it really is a unique movie. When I wasn't saying "God, it's been so long!", I was saying "God, this feels nothing like what we've seen in the MCU!" It really does play like a Bond movie.
I think that's why Natasha is shown watching Moonraker in her cabin.
Also, the opening credits felt decidedly Bond-esque.