In Taiwan street signs do mostly have English translations. A lot of citizens speak English, especially night market vendors. You'll also have a lot of native English speakers in Taipei due to expatriation from US and Canada.
In Singapore signs officially are in English. And it's one of the four official languages, which means most people speaks English.
In Malaysia people usually speak at least 4 languages. Because it was ruled by Britain before, people speak English fairly well.
Lastly, in China, well, nobody is traveling there now. International travel is down 97% this year, even after reopening. And if you're doing business there, well, there's no point understanding the contract in Mandarin because most likely it won't be enforced, and will favor local business anyways by the courts. What's really screwy is the government has replaced most of the English translation on street signs from a literal translation to phonetic translation of the mandarin sound. So even if your read the English part of the sign you cannot understand it.