Rainbow Six Siege not Showing on Xbox app, even with Game Pass Ultimate

Rainbow Six Siege is not included with Game Pass Core.

Hey, appreciate the help, Josef. Siege definitely is available in my region as it is installed on my PC from steam already. Remote installation isn't available because Ubisoft Connect is required. There's no solutions online for my particular issue, so none really except for the basic troubleshooting like opening and closing and such.

I also can't call or chat with microsoft support for some reason.

Please help

Hi and thanks for reaching Microsoft Xbox gamer's community. My name is Josef.
I'm an Independent Advisor and a Microsoft Xbox user like you.

Hope you're doing great today despite this Akikala

Where are you located buddy? Is rainbow six siege available in your region?

If that's the case, did you tried starting remotely the download using the mobile Game Pass app?

Or which troubleshooting steps you have done so far to fix this?

I'll be waiting for your reply, greetings from another Microsoft user

I got it figured out, it was an account linking issue, thanks!