English has become the de facto language of science: International conferences are held in English, the world's top scientific journals are in English and academics in non-English speaking countries get promoted based on their publications in English language journals. Even scientific jargon is in English—most non-English speakers use English terms and don't bother inventing equivalent words in their native languages.
source https://phys.org/news/2020-10-english-lingua-franca-science.html