No, DisneyPlus begin is not required for all devices, but it is essential for activating Disney Plus on certain streaming devices, smart TVs, and gaming consoles. Some devices, like smartphones and tablets, allow users to sign in directly through the app without needing DisneyPlus.com/begin. However, for devices that require activation via a code, users must visit https://disneypluscommbegin.com/, enter the code displayed on their screen, and sign in with their account. This ensures secure access to Disney Plus content. If your device prompts for activation, visiting DisneyPluscom/begin is necessary to complete the setup process and start streaming.