Oppo is dedicatedly working to provide its latest customized skin, ColorOS 11 based on Android 11 to all the possible devices. The company published the rollout plan of ColorOS 11 in the Chinese market for the month of March 2021.
Through a list, Oppo published a set of devices that are eligible to receive either open beta or stable beta versions of ColorOS 11. Look at the below list to find your device or press ctrl+F on your desktop:
We can see that Oppo is strictly following the plan as ColorOS 11 Open Beta build was out for Oppo A91 on March 2. While Oppo Reno2 and Oppo K5 will bag the Open Beta soon by next week. OPPO Reno2 Z will go through the open beta phase by mid-March.
Regarding OPPO A72 5G, the build may be outright on time for the Chinese market but the device users in Kazakhstan are already experiencing the beta version of ColorOS 11.