Pokemon Trading Has Been Tested On Nintendo Switch Online's Game Boy Emulator

Pokemon Gen 1 to 3 games haven
Pokemon Gen 1 to 3 games haven't officially made it onto NSO yet, but a programmer demonstrated that trading should work flawlessly.

Switch, SUBS] Game Boy Games Added to Nintendo Switch Online, Game Boy Advance Games Added to Expansion Pack @ Nintendo eShop - OzBargain

Pokémon Trading Card Game, Stadium 2 Joining Nintendo Switch Online Library - IGN

Nintendo Switch Online Game Boy and Game Boy Advance games

Which GBA games would you want to release on the Nintendo Switch Online GBA emulator? : r/GameboyAdvance

Nintendo Switch Online - Every NES, SNES, N64, Sega Genesis, Game Boy, And GBA Game Available

Alleged Leaks Reveal Game Boy And Game Boy Advance Games Coming To Nintendo Switch Online - Bounding Into Comics

Trading Pokemon with the Nintendo Switch Online Emulator

Mother 3 (Nintendo Game Boy Advance, 2006)

Biggest Game Boy & GBC Games Missing From Nintendo Switch Online

Nintendo Switch / Useful Notes - TV Tropes

Nintendo Game Boy Player For GameCube for sale online

We're Getting a New (Unofficial) Game Boy

Pokemon Trading Card Game for Nintendo Switch Online

Game Boy - Nintendo Switch Online adds Pokemon Trading Card Game; Nintendo 64 - Nintendo Switch Online adds Pokemon Stadium 2 - Gematsu

Is the Game Boy & Game Boy Color title added to 'Nintendo Switch Online'? - GIGAZINE