Interestingly, many glosses using Chinese characters (not all, but many) were from Japan-- sometimes used phonetically (e.g.
https://doi.org/10.1163/9789004438200_008), and sometimes used to translate concepts. Chinese imported many such loan words for technology from glosses that were made in Japan with kanji for words which had no existing equivalent in Chinese (
https://www.jstor.org/stable/23754127). But then Japan increasingly gave up new words in favor of transliteration, while Chinese continued to have this need. Chinese words that are phonetic approximations of foreign words are perhaps less common, but by no means rare. They're not all from English (e.g., 'grapes' is a transliteration from Indo-Iranian), and sometimes you have to look at the Cantonese pronunciation to hear the resemblance to English, and sometimes they're neatly hidden by a choice of word that fits well phonetically _and_ semantically.