You still have to pay for it. You will need a Netflix subscription.
It only saves you the expense/trouble of buying an Apple TV, Roku, Firestick, etc. etc. etc.
Many/most "smart TVs" have a Netflix app as well.
I find Apple TV the best way to watch Netflix. The tiny, minimal remote is sweet! It has voice response, and a trackpad. The trackpad is the best part, because with the better apps (and Netflix is one of the better apps) you can easily "scrub" to find go forward/back, and you see thumbnails to help.
Netflix on Contour does give you an "all in one place" experience, if that floats your boat.
I see that "data usage policies will apply". Which means you don't get a free ride on your Internet monthly quota. I've never had an issue with monthly quota, though. You would have to have a LARGE family of heavy Internet users who are content-hoarders (Downloading movies with Tor, etc.) to exceed the quota.