Just make sure you've updated to the most recent beta
Android 12 brings a fresh look to your smartphone, thanks in large part to Material You. Google's new dynamic themes add a splash of color to your home screen, your browser, and even your keyboard. We're quickly approaching Android 12's stable release, with some of the last bugs getting ironed out. Material You finally supports Google's assortment of live wallpapers with a new update to the Pixel Live Wallpaper app.
Google's Pixel live wallpapers now support Material You theming was written by the awesome team at Android Police.