Earlier quoted context omitted.
Woah, this is wild. Never knew how aggressive the copyrights were for *Zilla.
When you consider the most recent Godzilla film, Minus One, is the 37th in that franchise, and was not only nominated for an Oscar, and may be it's most lucrative, you can see why Toho would aggressively police that copyright. Minus One is legit a great film.
Edit: on the other hand, they apparently elected to use Godzilla as their logo, which kind of ruins the otherwise considerable unrelatedness.