I did say I liked it better than Marcy Playground. Just that Billie Eilish wouldn't be my first choice for a James Bond movie song. I'd say, though, that Billie's song is way better than, for instance, Sam Smith's song for the Bond film "Spectre." Both Smith and Eilish won various awards for their songs, however.
Smith made full use of a pretty impressive voice, but I have trouble identifying with a Bond theme sung half in that very high falsetto. However, I'm more impressed with his voice than Eiliish, who I think mutters and whispers her way through too many tunes.
My grumpy old man complaint is that neither of them have the gravitas that a Bond theme deserves. Shirley Bassey set the standard in the 60's (three Bond movie themes), and McCartney, Carly Simon, Nancy Sinatra, Matt Monro, Tina Turner, Adele and even Sheena Easton managed to give solid performances with a certain amount of power and gravitas. Tom Jones was of course up there with Shirley Bassey's performances in sheer power. I can't say that I find those qualities present in Eilish or Smith's performances.
List of Bond theme performers found here:
https://en.wikipedia.org/wiki/James_Bond_musicEnd of grumpy old man rant.....