A:AnswerYes. As Microsoft allows PC and Xbox (not just Xbox One) owners to play select games on both platforms, you can play Xbox games on any Windows 10 PC on your home network.
A:AnswerIf you're streaming to another device you should have no problems. You could also just plug an external monitor into the Blade and stream directly from the Blade using OBS.
A:AnswerFrom memory, I know the 2070 Super uses (for mobile) uses 115 watts. But I did see a question of whether this laptop uses a 2070 Super or Max-Q and one answer was that it uses a 2079 Super with Max-Q so it may be turned down to 80 watts. Double check on Razer website to confirm.
A:AnswerIt comes with the 230-W Power Adapter. The following are the AC Input and DC Output range:
* AC Input
Input voltage range: 100V - 240V
Input current range: <3.6A (C14)
Input frequency: 50 - 60 Hz
* DC Output
Output voltage: 19.5V
Output current: 11.8A
Total: 230W