It all depends on if you accept God’s Command in 1 Corinthians 11:5 and 6.
…:5And every woman who prays or prophesies with her head uncovered dishonors her head, for it is just as if her head were shaved. 6If a woman does not cover her head, let her hair be cut off. And if it is shameful for a woman to have her hair cut or shaved off, she should cover her head.”
The Russian Orthodox are absolutely correct according to God’s word.
“6 - If a woman does not cover her head, let her hair be cut off. “
Time to start enforcing it?