Following their disappointment at the national championships, Mishina/Galliamov participated in the 2021 Channel One Trophy, a televised competition organized in lieu of the cancelled European Championships. They were selected for the Time of Firsts team captained by Evgenia Medvedeva, and placed second in both segments, while the team finished in second place. After this they competed at the Russian Cup Final, which was widely viewed as a contest between them and national bronze medalists Pavliuchenko/Khodykin for the third Russian pairs berth at the 2021 World Championships in Stockholm. Mishina/Galliamov won both segments of the competition to take the gold medal, their only minor mistake being a free skate jump stepout from Mishina.