Nintendo announced their Financial Results Explanatory Material 1st Quarter of Fiscal Year Ending March 2022 on August 5th, 2021 and the report indicated that software sales released during this fiscal year got off to a strong start with New Pokémon Snap selling 2.07 million units outside of Japan.

Consolidated Operating Results

During the first quarter (April through June 2021) of this fiscal year, sales got off to a strong start for Nintendo Switch, with sales volume of New Pokémon Snap, released in April, reaching 2.07 million units.

For Nintendo Switch, upcoming releases include The Legend of Zelda: Skyward Sword HD (July), WarioWare: Get It Together! (September), Metroid Dread (October), Mario Party Superstars (October), and Pokémon Brilliant Diamond and Pokémon Shining Pearl (November).

Top Selling Titles Sales Units - As of June 30, 2021

Pokémon Sword/Pokémon Shield - 21.85 million pcs.
Pokémon: Let's Go, Pikachu! / Pokémon: Let's Go, Eevee! - 13.57 million pcs.
New Pokémon Snap - 2.07 million million pcs. (Excluding Japan)
Sources: https://www.nintendo.co.jp/ir/en/finance/software/index.html