Are all the position in Microsoft WFH?

I have several friends who works in Microsoft and would disagree

If the job is WFH, is green card applicable?

Why wouldn't it be?

Because you could... Work from home? In Canada or India?

Is that supposed to be a downside? I honestly don't see why that would matter. If someone is working for a US company, then they're working for a US company. The flag sticking out of the ground where they sit shouldn't be relevant.

Yes it is, because America has a vested interest in writing laws to benefit, I don't know, AMERICANS.

American companies are for Americans.

Why would they need a greencard?

So they can visit for the team building exercises and holiday parties, obviously

If you have a green card, you must live in the US the majority of the time.