Xiaomi has now listed its new phones like the Xiaomi Pad 5, Xiaomi 11T series, and Redmi 10 in its list of devices eligible for beta recruitment. The company has also started the Global stable ROM Android 12 beta-testing, kicking things off with phones in the Mi 11 series.
https://www.notebookcheck.net/Xiaomi-Pad-5-Xiaomi-11T-series-others-now-eligible-for-beta-recruitment-as-Xiaomi-begins-Android-12-Global-ROM-beta-testing.568131.0.html