Isn't there a WeChat avatar on Apple's phone?

Apple's mobile phone has no WeChat avatar. Apple's mobile phone does not have the function of WeChat avatar, because WeChat avatar needs to be modified at the operating system level, and Apple's operating system (iOS) is relatively closed, which limits the rights of third-party applications. Therefore, developing the WeChat avatar function will violate Apple's regulations. In addition, the WeChat avatar also involves data privacy and security issues, so Apple believes that this feature does not meet its security and privacy policies.