Right now using detox with Expo isn't a great experience (IMHO), plus I get the feeling the detox team doesn't enjoy supporting expo. Fair enough for the wix team, it reduces their support requests but makes recommending detox unlikely.
Having experienced the dizzying joys of cypress testing with expo-web, the greatest wish at our company would be for an expo e2e testing tool that lets us test native iOS/Android using expo! We'd happily pay for features like test recording, or test runner servers etc.
Also, see React Native Radio podcast discussion from 26:30 (https://www.reactnativeradio.com/episodes/180-testing-strategies-tools-and-frameworks). I know others would love an expo blessed e2e testing solution!