OpenHarmony has App Twins for HAP apps

Getting your Trinity Audio player ready...

OpenHarmony source code reveals the App Twins for HAP apps where user can install and uninstall copy of app on devices similar to Huawei function on EMUI/HarmonyOS with AOSP base and also Parallel Space. Where you can log in to two apps accounts at the same time, with third party apps without limitations without the virtual machine. The twin app will then be displayed on the home screen. Virtual space that is completely independent and separate on your device that allows you to run other apps inside. That way, you can use the same application twice on the same device. One runs on your device, and the other runs on Parallel Space.

Source: Telegram/Weibo