Is English really useful at work? In what ways is it useful? For college graduates?

English at work, at present, is mostly not practical;

But once you master English, you will get better job opportunities than others. For example, I work in architecture, which is a traditional industry, and I basically don't use English. However, some foreign businessmen are engaged in real estate work in China with good treatment and benefits, or some internationally renowned management consulting companies require good English and oral English. For example, China Shipping works in Hong Kong and recruits in the Mainland. They also require good English.