Apparently this latest Alpha Skip Ahead is so broken that I can't even report it. (no games...

Well if he's in the insider programn then he got a update today had the same issue the alpha & apha skip ahead builds are broken for 50% of the people that are ih that group so don't update your console if you're in alpha or alpha skip ahead

You must be invited to become an Alpha Insider or Alpha Skip Ahead Insider, to do so You must Very active in Xbox, doing missions and report the bugs You see in the system, as much as You do this, so You Will be Very close to become an Alpha Insider. You
must be at least in Delta preview to become an Alpha Insider, but You Just need to be an Insider to be invited to become an Alpha Skip Ahead, but this one is very rare to be invited and there is a certain number of people to be invited, no more than that,
If You were not invited to be Alpha Skip Ahead certain time, so You must wait a Second chance when they Will invite New members.

Hi there,

Be sure to report any issues while in the Insiders program through your console.

The forum for the Insiders group has been moved to
here.

I know the group is aware of the latest audio issues as it was posted in the info blog

here.

currently the Insider App is broken for me as well. I can game. I just can’t do the other things or report via the app.

"xbox not being able to play dolby atmos"

According to the Latest Alpha skip ahead Insider release notes this is still an issue the engineers are tracking and working on.

Fill out a detailed report, giving make and model of headset you use and send it to the development team.

I am in Alpha Skip ahead and sometimes get these issues. You could try backing out of the Insider program, to a public build and seeing if things work.

Remember Alpha and Alpha Skip Ahead are the cutting edge OS builds and can be full of bugs.