I put Android 12L Beta 3 on mine today.
https://developer.android.com/about/versions/12/12L/release-notes#12l-beta-1
https://www.reddit.com/r/GooglePixel/comments/sp1pjf/your_experiences_on_12l_beta_3_p6p/
https://developer.android.com/about/versions/12/12L/release-notes#12l-beta-1
https://www.reddit.com/r/GooglePixel/comments/sp1pjf/your_experiences_on_12l_beta_3_p6p/