Android 12 has come to the FP4

Hello!
I’m very disappointed with this Android version. The main theme is ugly and not user friendly; the clock on the lock screen is too huge, the default screen (menu) is too bright (every parameters had different colours before), and buttons like “Wifi”, “Hotspot”, “Plane mode”,… are not just icons anymore with tabs a loooot too huge.
Please, make it reversible or at least customizable. How do we switch back to previous Android version?
Please help.