Can you play the games of the XBox One all on the new XBox X?
Or you have to buy each new game again so you can play on the XBox X?
Yes that is the same console is only more powerful
Both are in fact the same console (architecture) and therefore of course compatible. Both consoles are also called Xbox One, because the letter at the end only says something about the variant. The X-variant is the premium model and offers more power.
I have another question for you! *
The games of the Xbox One can be played on the XBox X, if I have the games and they are already Optimized for the XBox X, I have to download the mzss then or how does it then with the games? *
Is the same game, then it's like on the PC, there are just upscale graphics options. Most of the time, you do not need a patch for, if so, then for better texture. Everything goes automatically.