Me neither, it still says ‘Your system is up to date. Android: 11’.
According to this message the rollout should have been completed almost a month ago, but the other day I saw someone on a different site mention that they never got the update prompt either.
I have this unsubstantiated theory that a batch has been skipped due to the temporary stop of the rollout, and have sent a mail to support a few days ago (no answer just yet).