Improved app launch experience:
running on Android 12, a new app launch animation for all apps from the point of launch, a splash screen showing the app icon, and a transition to the app itself are added, making app start up a more consistent and delightful experience.

New call notification template:
running on Android 12, call notifications are improved to give them more visibility and scanning capability, improving their consistency with other notification components. The users can attach a large avatar image, provide text, and set button colour hints.

Improved web linking:
running on Android 12, some changes are made to help users get to their content faster and more seamlessly.

Rich haptic experiences:
The tools are expanded to create informative haptic feedback for UI events, immersive and delightful effects for gaming, and attentional haptics for productivity.

Video encoding improvements:
Android 12 standardizes the set of keys for controlling the range of the video Quantization Parameters (QP) to ensure that users don’t experience extremely low quality when videos are complex.

Trust and safety: Running Android 12, new controls over identifiers are added that can be used for tracking, safer defaults for app components, and more.

Source https://mobilityarena.com/android-12-beta-1-for-tecno-camon-17/?amp=1

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nice, this is really good to know