Any word on if Omega ring will be able to console stream yet? I live in PA and don't have...

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

In my understanding the Dashboard experiment, A, B, C selection, is totally random.

As "Both consoles say their OS Version is (19h1_release_xbox_dev_1911.191028-1335)" your consoles are either in the Beta or Delta ring.

Both those rings and Omega ring are getting a preview update News release notes Beta Delta Omega
Insiders today, which you can manually start or wait until it becomes mandatory.

After you do the update, if you want to change rings, it will be the perfect time to change as all those rings will be on the same release. Subject to eligibility.

The Chromium browser was previously only available for members in the Alpha Skip-Ahead ring, but as of the last couple of days, it's not only been rolled out to Alpha members, but also Beta and Delta members. Only the Omega rings have yet to receive it.

Status July 2021

There's a Reddit for the Insider Program that can keep you up to date on what previews are available at any time. https://www.reddit.com/r/xboxinsiders/

They don't release specific dates no when a preview will come to a certain ring until it's ready. So there's no way to know when it will be available for omega yet. It was made available for beta yesterday.

Thank you for taking the time to post this on the Xbox Forums. We understand that you are seeking a way to use your mobile device to use Xbox Console Streaming.

In order for you to be able to use this, you will need to install the
Xbox Insider Hub on your console, and update your console to use at least the
Omega ring.

This will in turn allow you to configure your console from a new option in your
Devices & streaming to allow you to set-up Console streaming.

This should then allow you to see your console in the Console streaming section of the
Xbox Game Streaming app.

You should be able to find more info on this on the
Xbox Game Streaming Support Hub.

I hope this is of some use to you.