Xbox Series X freezes every 20 minutes or so during games

In this case, our suggestion here, attempt a Soft Factory Rest Xbox Support by selecting the following:
Reset and keep my games & apps. You should use this option as your primary choice when troubleshooting. It will reset the OS and delete all potentially corrupted data without deleting your games or apps.

Did not work. Still getting the freezing.

So I'm not the only one that's experiencing this. It freezes for a few seconds then go back to normal This happens during cutscenes, and during gameplay. It happens every few minutes. It's pretty annoying, to the point that I've stopped playing the game.

I've only finished two games. It freezes every time I play after about 5-20 minutes.

Put your cup of tea on it and if stays hot, then we have a problem Houston. Just kidding. If you have had the console for a few years and often play high demand games like COD then it is time for service. Streaming or playing a movie should not stress it.

Make sure your console is good and clean. Take it out of the shelf. Dust it. Get a can of dust off and spray what you can see, following the directions (meaning the object is to get rid of collected material, not embed it). Gently but firmly turn it over and
get the collections out.

After that, the recommended is to send it to a shop for service. The console should last you a couple of generations easily.

You can search the web for console maintenance, but we do not recommend or support self-repair. Please have it sent in for maintenance.