The kernel logs will scroll down the screen. Once the graphical installer loads, select your language.
There is a common misconception regarding HarmonyOS on desktop computers. Currently, there is no official, consumer-ready "HarmonyOS PC" ISO that you can simply download and install like Windows or Ubuntu. Huawei has officially confirmed that a PC version of HarmonyOS is in development and slated for release in , but it is not yet public.