You need the internet to play games online on your Xbox One, but most Xbox One games don't necessarily require an internet connection.
Xbox Remote Play does not work on the go! Please help! - Microsoft Community
How to Set Up Xbox Game Streaming, Play Games on Your Phone
Xbox's online DRM under fire as some users left unable to play games for 4th day : r/Games
Anyone know what's happening? I don't have another Xbox this it the only one I have : r/xbox
How do you play Xbox One games on the Xbox Series S? - Coolblue - anything for a smile
How to Play Xbox 360 Games on Xbox One
Yes, you can: How to play Xbox 360 games on Xbox One – GeekWire
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How to Gameshare on Your Xbox One
How to Stream Xbox Games to Your Phone or PC With Remote Play
How to Search Internet on Xbox One?
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Xbox Series X vs Xbox Series S: Which console is right for you?
How to Play Games in XBOX One without Sign In?
How to remote play PS5 and Xbox Series X games on your phone