XBox App and Account linking to strange places

i dont have an account linked, and how am i supposed to go onto the xbox app when i cant get it to work in the first place

I'm having this problem too. 6 years of playing and then you suddenly have to remember an account password you haven't used in 6 years or the details for the account you signed up with in the first place. It's strange that you can't sign on offline with
a gamertag unless you sign in with the microsoft account as well. I currently cannot use my xbox console at all, because i can't prove I'm me, which is doubly strange, as i'm paying for the service in the first place.

yeah they are still there on the xbox one

It's also possible these addon's aren't supposed to show up as of yet, but the servers might have glitched or bugged out and they popped up in each of our digital stores, but maybe the reason why the installation fail's is perhaps they aren't completed yet.
I would not be surprised after having six free games appear in my ready to install list the other day for some odd reason. Which many players have had happen.

i believe they also said Available on PC and Phone, but i couldn't find them by searching. i found them on the console by going to the list of New Add-Ons. this section doesn't seem to exist on the other system stores.