[9] On 13 December 2020, he scored a goal on the 2–0 victory against FC Mariupol in Kyiv at the NSC Olimpiyskiy thus celebrated the 100th match in the UPL.

[10][11][12] On 19 January 2021 he scored his first goal with the new team in the victory for 4–2 against Dinaz Vyshhorod in a friendly game.

[15] On 8 March 2021, he scored in Ukrainian Premier League in the season 2020–21 against Rukh Lviv at the Skif Stadium for away victory for 0–4.

[17] On 11 July 2021 he extended his contract with the club for one more year and he has nominated captain of the team of Chernihiv.

[23][24][25][26] On 18 February 2022, Kartushov after 10 years with the club of Chernihiv, he signed a 2.5-year contract with Metalist Kharkiv.

In March 2022, during the Siege of Chernihiv, Kartushov, together with other Desna's ex-players like Andriy Totovytskyi, Yevhen Selin, Vladyslav Kalitvintsev, Pylyp Budkivskyi, Ihor Lytovka, Andriy Dombrovskyi, Oleksandr Filippov, Levan Arveladze, Artem Favorov and Denys Favorov, transferred money for the civilian population of the city of Chernihiv.