Which information can Chrome access from PC

Hi guys, And I’m trying to develop an extension for Chrome so I can spoof my Monitor so it thinks that only one is connected, but I came across the ‘first’ frustrating question ..

Can chrome even access the information that I have an ‘second’ or duplicated monitor connected ?

I can’t watch movies on HBO go because they think that I want to record the movie 🤦🏼‍♂️ (no worries i don’t want to do that )