She reached her first junior Grand Slam final at the 2021 Wimbledon Championships as an unseeded player, in which she lost to Ane Mintegi del Olmo.

Schunk made her WTA Tour main-draw debut at the Stuttgart Open as a qualifier, but lost to Belinda Bencic in the first round.

[1] Schunk made her Grand Slam tournament debut at the French Open as a lucky loser after Ana Konjuh withdrew.

[3][4] She qualified for her second major at Wimbledon,[5] but again lost in the first round to a Romanian, this time Mihaela Buzărnescu.

[6] Only main-draw results in WTA Tour, Grand Slam tournaments, Billie Jean King Cup and Olympic Games are included in win–loss records.