As far as exclusive Switch 2 games, first year alone we've got
>Mario Kart World
>Donkey Kong Bananza
>Kirby Air Riders
>Splatoon Raiders
>Hyrule Warriors Age of Imprisonment

And unreleased Switch games with Switch 2 editions
>Metroid Prime 4
>Pokemon Legends ZA

New exclusive Switch 2 content for previous Switch games
>Kirby and the Forgotten Land
>Mario Party Jamboree

Switch 2 editions and free updates for
>Breath of the Wild
>Tears of the Kingdom
>Pokemon Violet/Scarlet
>Links Awakening
>Echoes of Wisdom
>Mario 3D World + Bowser's Fury

Then you have ALL of the Switch library that got natural enhancements due to the increased power, even without a dedicated update. More steady resolutions and framerates for a ton of games, too many to list.

And all of that doesn't even factor in announcements that would pop up in an upcoming Nintendo Direct, first party, third party, and indies as well. All in the first year alone.