A:AnswerYou will probably need to go through the SteamVR ecosystem, at the very least. But there are too many variables to go into here. You need to narrow down what you are doing and what your approach is.
A:AnswerYes, I believe so as it easily meets the minimum requirements. If you wanted to be able to play using higher settings, you might want to add another 8BG of ram which will greatly improve the performance. I recently purchased this laptop, added 8GB of RAM and can play Battlefield6 which has a lot higher requirements.
A:AnswerThe wattage is listed in Specs.
The TGP (as I am sure you know) of this GPU can vary from 35W to 80W, but at this price point, I would guess somewhere in the middle (60W-75W).
A:AnswerYea if you're playing like the Binding of Issac or like Gwent or something, wouldn't vouch for it running EAFC 26 though, see my very short reivew