Falkowska made her WTA Tour main-draw debut at the 2021 Poland Open, having received entry as a lucky loser.

[2] She was drawn against Katerina Bondarenko who had beaten her in the final qualifying round,[3] with Falkowska prevailing in less than an hour and losing only two games.

[4] Partnering Cristina Bucșa, she won the doubles title at the 2022 WTA 125 Andorrà Open, defeating Angelina Gabueva and Anastasia Zakharova in the final.

[5] Alongside Katarzyna Kawa, Falkowska took the doubles title at the 2023 WTA 125 Copa Oster, overcoming Kyōka Okamura and You Xiaodi in the final which went to a deciding champions tiebreak.

[8] Partnering Martyna Kubka, Falkowska won the doubles title at the 2024 WTA 125 Poland Open, defeating Céline Naef and Nina Stojanović in the final.