It was indeed! And Google removed it in 2018.

- https://en.wikipedia.org/wiki/Don%27t_be_evil

and it is still there

https://abc.xyz/investor/board-and-governance/google-code-of...

Section "2. Competition Laws"

https://www.nytimes.com/2024/11/20/technology/google-antitru...

"Don't be evil" would be some evil company's motto in like Lego Movie 3

It's "Do More Evil" now.