I tried a few searches (on linkedin). It’s difficult to measure because python is more widespread than R, which is more widespread than Julia. (still R is quite popular).
Percent of hits with R that refer to the language seems to be about 5 to 20. R+D is more common.
Rlang get no hits (AFAICT) referring to the language. Search engine suggests erlang.
“R language” does quite a bit better. Most hits are for the language. But, a significant minority are not.
“Julia language” does far better than anything in my initial post. A substantial minority of the first few pages refer to the language.
python returns, as I already mentioned, 2 million hits. I looked for a few minutes and was unable to find one that does not refer to the language.
For Julia and R, I suppose it’s debatable whether there is a problem. I think the argument for “yes, there is a problem” is strong. For python, there is clearly no problem. The problem would exist for someone who wanted to refer to the snake.
It is likely possible to do better with Boolean searches, etc.
I still think JuliaLang, especially as a tag, is useful. This is as unambiguous as python, and obviates the need to think about how to search.