Well yesterday the french news post that Macron is winning Le pen with 68% of the population, it is obvius who is gonna win by now.
How reliable are these polls?
Fair but dated before the hacking leak some abstention may also affect turnout.
It is always the most committed that go to the poll the rest are non-participants and do not affect or change the outcome so the game is still on. For another 9 or so hours till the tally's start to come in the only poll that matters is election day.