there is nothing to worry about, it's perfectly normal. Windows insider team have mentioned many times on Twitter and also in the Blog post:
IMPORTANT NOTE: This feature is currently only available to Windows Insiders inUnited States, Canada, Great Britain, Australia, and India. This feature also requiresthe new Chromium-based Microsoft Edgebrowser (Stable) to be installed on your PC. We are also testing different variations of this experience so some Insiders may see a different experience than others.
it's a staged rollout, not everyone will have it at first. I'm on the same build as you and I don't have it.
Happy New Year #WindowsInsiders! Let's kick off 2021 with new Build 21286 in the Dev Channel! Be sure to check out the blog post for all the details! https://t.co/LWbgopM0YC#AreYouFlightingYet pic.twitter.com/PL5HfkqzwR