Actually it kind of does of does;
https://www.economist.com/blogs/prospero/2013/11/multilingua...
https://www.sciencemag.org/news/2015/03/speaking-second-lang...
https://www.psychologytoday.com/blog/life-bilingual/201111/c...
https://www.edge.org/conversation/lera_boroditsky-how-does-o...
At the very least having multiple languages ensures a diversity of thinking.