Google released its first Android 12 Public Beta last month, and the second build is now on its way to participating Pixel users. This update brings some of the privacy features that were announced for the final release during the I/O presentation. I've installed the latest build on the Google Pixel 5 and can tell you that the UI visually looks better. There's more contrast throughout the interface. The huge volume slider from the first build has been updated to look more less ridiculous. We anticipate Google will continue tweaking the interface throughout Android 12's Beta...
Source: https://www.gsmarena.com/android_12_beta_2_now_rolling_out_to_pixel_devices_brings_new_privacy_features-news-49529.php