Here, in summary
1) HarmonyOS is the base software of EMUI 12
2) Old Huawei phones that has pre-installed Google Mobile Services, can still upgrade to EMUI 12. No issues
3) EMUI 12 comes with various new features including a brand new control panel, notification panel, new animations for a better user experience as well as a bunch of other customizations that will enhance the app processing
4) EMUI 12 looks similar to the HarmonyOS operating system
5) EMUI 12 also supports Android apps from its relationship with Android Open Source Project (AOSP) library
https://www.huaweicentral.com/heres-what-huawei-said-about-google-apps-on-emui-12/
1) HarmonyOS is the base software of EMUI 12
2) Old Huawei phones that has pre-installed Google Mobile Services, can still upgrade to EMUI 12. No issues
3) EMUI 12 comes with various new features including a brand new control panel, notification panel, new animations for a better user experience as well as a bunch of other customizations that will enhance the app processing
4) EMUI 12 looks similar to the HarmonyOS operating system
5) EMUI 12 also supports Android apps from its relationship with Android Open Source Project (AOSP) library
https://www.huaweicentral.com/heres-what-huawei-said-about-google-apps-on-emui-12/
