Forum Discussion
You will probably be able to lower the Insider program channel - without a clean installation of Win
https://blogs.windows.com/windows-insider/2022/02/03/whats-coming-for-the-windows-insider-program-in-2022/ ...
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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)
https://blogs.windows.com/windows-insider/2022/03/23/announcing-windows-11-insider-preview-build-22581/