The regime has convinced every one the Fatherland is under siege and its one’s patriotic duty to vote for the President.
Whether enough people will turn out to give him the mandate Putin is looking for is the problem.
When you have the effective President For Life running, how does my vote matter.
In a nation of sheep, it doesn’t. He just can’t lose. ;-)
Look at the other people in that place. A guy is stuffing a ballot box right there in the open and no one cares. They even line up and wait until he is finished.