https://wccftech.com/android-12-beta-will-soon-be-available-on-at-least-10-oems/

It has only been a little while since Google has released the Android 12 Beta. You can actually go ahead and download it on your Google Pixel phone, or if you have a Project Treble compatible phone, you can get the GSI binaries as well. However, 10 OEMs have already committed that their devices will take part in the Android 12 Beta, including Nokia, TCL, OnePlus, and more.

This is nothing new, Google Pixel phones are always the first ones to get access to beta updates of the latest Android version, and things are not different when you are looking at Android 12, either. Alongside the Pixel phones, 10 more brands are taking part in bringing the latest Android version on their smartphones.