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/                                                                                                                                  "  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. "