Nintendo announced their Earnings Release: Fiscal Year Ended March 31, 2023 on May 9th, 2023. Good sales were posted for Pokémon Scarlet and Pokémon Violet, which recorded a total sales of 22.10 million units. Add-on content for Pokémon Scarlet and Pokémon Violet in the form of The Hidden Treasure of Area Zero is on the way.

Top Selling Title Sales Units - As of March 31, 2023

Pokémon Sword/Pokémon Shield - 25.82 million
Pokémon Scarlet/Pokémon Violet - 22.10 million
Pokémon Legends: Arceus - 14.83 million

Source: https://www.nintendo.co.jp/ir/en/