I have an Xbox Series X and would like to know if I can add two different accounts in...

Hi there Bottum, my name is Gerardo, and I'm an Xbox player, just like you. I'll be happy to assist you with any questions or concerns you may have.

The language displayed on your Xbox console is not linked to a specific account but rather to the console itself. Therefore, it's not possible to have one language for one account and then have the console switch to a different language when using another account. You would need to manually change the language each time.

I appreciate you understanding and if you have further questions please let me know.

Kind regards,
Gerardo.

every account has their own language settings, so yes

This. I think they should add more customization options first. This way they can then just add the specific customization for the different items, and with the upcoming Xbox Series X it would be nice to have a broader set of options to customize the possible
new controllers along with the series 2 elite.

An Xbox One and a Series X are two different consoles. The game has not been released for the Xbox One. You would need a Series S or X console in order to install it.

I have now done this another two times: once on Xbox Series X using Microsoft Edge and the other on the same iPhone I use, now using Firefox instead of Chrome or Safari.

When I tried to do it on Xbox Series X, every time I tried to use the link for the page on Xbox Marketplace, it would redirect me to the current Xbox Website and, similar to the Microsoft store, claimed the game was unable to purchase. When trying it on Firefox on iPhone, it worked up to the point where it said I had to add a payment option (which I had done previously on Safari and Chrome, all on the same Microsoft account). I clicked the link to add a new payment option, and I was greeted to a seemingly infinite loading screen. I have tried clearing cache numerous times, yet it doesn’t seem to work on the three different browsers I’ve tried on iOS and, to my knowledge, I cannot buy it through Edge on Series X until I can avoid the redirect from the Marketplace to the Xbox Website.