Google has focused heavily on privacy in the second beta of Android 12. One small but noticeable change is that users will see a small toast notification appear whenever an app accesses their clipboard. However, if you've been copying and pasting things to and from the clipboard, this new alert pop-up can get a bit in the way. Here's how to disable it:

Open the Settings app and tap Privacy.

Then tap Advanced.

Now scroll down until you reach Show Clipboard Access and disable this option by tapping on it.