https://wccftech.com/google-release-android-12-beta-5-final-version-coming-in-a-few-weeks/

Google has decided to release the last and final beta of Android 12. The latest update does not really add many features, which means that the company is more likely just polishing what they have been doing for the past few months.

Android 12 reached platform stability with beta 4, and beta 5 serves as the release candidate. This means that all app-facing surfaces and behaviors are now in their final stages. Developers can now test and review their apps to ensure that they are ready for the stable Android 12 release.