Microsoft Edge's "Preview Channel" Option Disappeared in Windows 11

Previously, I joined the Dev channel through the option "Get early preview versions of Microsoft Edge" in the settings, and the browser version switched to Beta. However, recently Edge seems to have automatically received and rolled back to the official Release version, causing the original preview channel selection entry in the settings to completely disappear, making it impossible to reselect or join any preview programs (Dev, Beta, Canary). Seeking methods to restore the channel option or rejoin the preview versions.