The blog post seems to hint that we'd also be to switch from the Dev channel to the "Release Preview" channel: "If your device is in the Beta Channel and you want to stay on the released version of Windows 11, you have 10 days or until we release a newer build to roll back. If you do decide to roll back, be sure to promptly change your channel to Release Preview."
Though I am unable to switch to it. I was only able to change to the Beta channel. Is anybody else having this issue or knows how to fix it?