The Pokémon Company International today announced that the Pokémon Trading Card Game (TCG) Live will officially launch worldwide on June 8, 2023, on iOS, Android, macOS, and Windows devices.
Ahead of the release of the latest Pokémon TCG expansion, Scarlet & Violet—Paldea Evolved will be playable in Pokémon TCG Live beginning June 8. To celebrate the launch of Pokémon TCG Live, players who log in between May 2 and June 6 will receive special customization accessories, including a coin, card sleeves, and deck box.
In addition, the Pokémon Trading Card Game Online will be removed from the App Store, Google Play, and Pokemon.com on June 5, 2023, at 9 a.m. PDT. More information about the Pokémon TCG Online sunset process and migration to Pokémon TCG Live can be found here.
Source: The Pokémon Company

Seems pretty telling that you can’t even play it on Switch.
not defending this, seems scummier than old one, but I’d guess that may just be an interface issue