It sure as f*ck is... The Moore era is why we have Austin powers after all..
Sounds like you probably haven't seen "Our Man Flint" or "In like Flint".
In
The Spy Who Shagged Me, AP literally wears the same jump suit as Lazenby in
On Her Majesty's Secret Service.
Austin Powers was more of a spoof and celebration of 60s era spy genre and culture than any Moore Bond stuff. And Roger Moore was a very handsome man (no homo) compared to Powers.
Fun fact: Sir Roger was friends with Michael Caine, they were both from poor working class "cockney" backgrounds, and Caine used to raz Roger over how he adopted a posh accent to cover up his background.