[4] On 27 September 2020, Dubois scored only his fifth ever Ligue 1 goal, in over 140 appearances, in a 1–1 draw with Lorient at the Stade du Moustoir.

[7] Dubois was named club captain by manager Peter Bosz in 2021 following the sale of Memphis Depay to Barcelona.

He made his debut on 2 June 2019 in a 2–0 friendly win against Bolivia, coming on for Benjamin Pavard in the 46th minute of the game.

9 days later, Dubois made his first start for the France senior team and played every minute of the match, in the UEFA Euro 2020 qualifying 4–0 away win over Andorra.

[16] On 10 October 2021, Dubois came on as a substitute in the 79th minute of the UEFA Nations League Final, a match France would go on to win 2–1 over Spain.