According to the independent monitoring group Golos, there are reports of voters being pressured to go to the polls.
Economist Sergei Aleksashenko: "This is a standard Soviet-Russian election of the Putin period. Unwanted candidates are not allowed, the necessary votes are cast, and the electoral authorities are engaged in falsification."
Republic.ru has a compelling photo essay, The Election At The End Of The World, showing voters casting their ballots in Yakutia in the Russian Far East.
Somebody has creatively spoiled their ballot -- renaming the candidates as Game of Thrones characters. (Putin is the Night King.)
Another video from our correspondent in Moscow, Chris Miller: