This is a theoretical question because valorant hasn't progressed even close to the point where such a question would be relevant.
Would speaking certain languages improve a team's ability to coordinate and communicate due to increased information density in the speech? Like, if you could convey the same idea with a smaller amount of speech would your team be able to react faster than to in game events?
Similarly, it a language had more clarity for the vocabulary used by teams to communicate, would a team speaking it see any benefit?
It's a question that I've thought about on multiple occasions - there isn't a very popular example of this in traditional sports either from my knowledge at least.