Hello, how are you? Hope you're well. My name is Mateus. I'm an Independent Advisor and I'll be glad to help you today.
First, welcome to the Xbox community. Unfortunately, this is not possible yet, if you refer to a keyboard and mouse they will not work as there is no compatibility yet. If you play on your mobile phone, some games may work by tapping the screen, but not all games support this technology.
If you would like to suggest this feedback to the Xbox team, you can do so via the link below.
https://www.reddit.com/r/xboxinsiders/wiki/ideas
*Thank you in advance for contacting the community, I hope this can help you. Let me know if you have more questions, please.