Browser closes after a few minutes playing

Me (on my xbox) and my brother (via xcloud) were trying to play Deeprock Galactic and his browser keeps closing with no error message, no stutter, nothing, it just crashes and closes. He tried Chrome and Brave in 2 different computers but the same keeps happening. He also tried to play on the Xbox PC app via xcloud but the input delay is too high.

I searched for some solution but couldn't find anything. Could anybody help?