Feb 17 2022
What’s coming for the Windows Insider Program in 2022 | Windows Insider Blog " Now’s a good time to start thinking about what Channel is best for you. We will soon be giving Insiders a window in which they will be able to switch from the Dev Channel to the Beta Channel. Stay tuned for details in the coming weeks. "
Mar 30 2022
Important - you can already lower the Insider channel!!! ( without a clean installation of Windows )
For Dev channel, and Beta - t the same version (Switch works)
Announcing Windows 11 Insider Preview Build 22581 | Windows Insider Blog