Yes.
Some people may disagree but it is to your advantage if you speak French. A very small minority get to move to Quebec without knowing French at all and that is the exception rather than the rule. For example, if you are hired by McGill as a faculty or one of those rare jobs where you work on your own. In both cases, these people are in Quebec and are already working in Quebec.
If you are residing outside of Canada and thinking of settling in Quebec. Then you need French otherwise, there's no reason to select your profile for immigration. You don't hold a job, you don't have a business in Quebec, you know no one in Quebec, what makes you more attractive than someone like you but who speaks French?
You also understand that while the online assessment may provide a positive opinion on your profile, there's nothing to stop Quebec to demand that you show so French certification. What do you do then when they ask? Start to learn French by then?