Omega ring has been enabled, but app say NO!!!

It looks like it hasn't been released for the Omega ring yet. Hopefully soon!

It's still rolling out so at some point you'll get it on your Series S.

Only if you are in a Insider preview ring! ASA, Alpha, Beta, Delta or Omega.

There has been no notification that the new dashboard has been released to GA.

Instead of leaving the Xbox Insider program as one Ambassador has suggested you can drop down to a lower ring which receives much fewer updates. For example if you are in Beta ring drop down to Delta or Omega. The Omega ring receives the fewest updates,
usually just before it is released to the general public. This can be managed using the Xbox Insider Hub on your console.

Hi, I tried to private message you but it didn't work.

You have to be in the insider preview to download the avatar beta app. It works on the original Xbox One, the Xbox One S and Xbox One X. It is not rolled out by console model but by which Insider Preview ring you are in. It has now been rolled out to all
rings.

Insider Preview has Alpha Skip Ahead, Alpha, Beta, Delta and Omega rings. Alpha Skip Ahead and Alpha are invite only from the development team. You can use any Xbox One family of console in any of the rings.

My 2nd replacement Xbox seems to be running HUT no absolutely fine. Also apparently the insiders Xbox app has a patch in the Omega ring that suppose to address all the consoles that are crashing. Next week I believe it goes live to everyone. Hopefully this will help you

Link with more information on this update? Mines been crashing too