According to Microsoft it is, because [they assert] anything on the web is in the public domain: "freeware." [0]

Eric Schmidt says it doesn't matter, just do it and let the lawyers clean it up. [1]

0: https://www.forbes.com/sites/barrycollins/2024/07/01/has-mic...

1: https://www.msn.com/en-us/money/news/ex-google-ceo-schmidt-t...