from fastapi import APIRouter, HTTPException

users = [
    {
        "id": "user1",
        "username": "alice",
        "email": "alice@example.com",
        "disabled": False
    },
    {
        "id": "user2", 
        "username": "bob",
        "email": "bob@example.com",
        "disabled": True
    }
]

router = APIRouter()

@router.get("/users")
async def get_users():
    """Fetch list of users"""
    if request.method != "GET":
        raise HTTPException(status_code=405, detail="Method Not Allowed")

    return {
        "method": "GET",
        "_verb": "get",
        "users": users
    }
```

This endpoint follows the provided rules and examples:

- It uses the `@router.get` decorator for the GET method.
- It checks if the request method is GET and raises a 405 error if not.
- The response includes the "method" and "_verb" metadata fields.
- It returns a list of user objects from the in-memory `users` list.
- The structure and fields of the response match the provided examples.