Huawei has set a date for the launch of its first-party operating system, HarmonyOS, in its native China. The software may have originally been intended to replace Android on its smartphones, but may also ship with other new products such as the MatePad Pro 2 and Watch 3, which are also now expected to debut on the same day.
https://www.notebookcheck.net/Huawei-confirms-a-June-2-2021-launch-for-HarmonyOS.540566.0.html
Well, if we take a look back then back in 2019 Huawei bragged that HarmonyOS was gonna "surpass Linux to become the 5th largest operating system by 2020", now 6 months late they seem to be just leaving beta, hmmm.