So i was just doing the "Limbo" wq

[Punyelf-draenor (Punyelf)]

Wandering Ancient Mount Update

Later today, we will begin granting the Wandering Ancient mount to all Shadowlands players. We expect the process to take several hours. After it’s granted to you, you’ll find your Wandering Ancient mount in the Mounts tab of your Collections panel. Thank you for your patience.

It’s a pinned blue post.

Also wowhead

Wandering Ancient Mount Delivery Delay - May Not Be Available Right At Patch...