They ejected toward the end but that just makes development more difficult, particularly the deployment process.
Expo is nice but the whole DX is just painful. The iOS Simulator will crash often. You need to do a hard 'expo start' relaunch often. What looks great in iOS will often be broken on Android. Trying to get pixel perfect UI and the desired UX is painful. Expo is full of bugs and limitations. RN is old and unmaintained.