This is a popular open-source Android app that allows users to run Windows applications via Wine and Box86/Box64. It provides a relatively stable environment for running the original Zero Hour installation.
ExaGear does not work on Android 12+ due to 32-bit library deprecation. If you have an old Android 10 phone, ExaGear offers a simpler UI than Winlator. However, for 99% of users today, Winlator is the superior choice. Command And Conquer Generals Zero Hour For Android