Huawei has recently started rolling out the HarmonyOS 4.0 version rollout for developers. With the HMOS 4 version, the Chinese tech giant has included a set of unique emoji collection. You can easily install it.
Just download the emoji pack from here. Now, copy and paste the file into the Huawei > Themes folder. Then launch the Themes app. After clicking the customize button, find the font section. Then the emoji pack you downloaded will appear. Apply and see the results.