I'm not convinced it has anything to do with who is using the language. If the best framework happens to be written in some language in some way, well I guess that is what I will use...
My experience back when I was trying to get into games a few decades ago was that some devs only change tools if the platform owners shove them into their throat without any other option, or get proven wrong by having one of their idols going alternative.
Like it happened with Pascal, C and C++. Or having an OS underneath their engine.