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.

An official Game Boy Advance Emulator could be coming to Nintendo Switch

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

CredevZone RG35XX Handheld Game Console 3.5 inch IPS Retro Games Consoles Classic Emulator Hand-held Gaming Preinstalled Hand Held Video System with Portable Case 64GB Gray : Toys & Games

Pokémon Home transferring guide, how to transfer from Pokémon Go, Legends Arceus, Brilliant Diamond and Shining Pearl explained

Nintendo Switch Online: GoldenEye 007 Joins N64 Retro Library - CNET

HOW TO TRADE POKEMON ON MY OLD BOY EMULATOR IN WITH 2 DEVICES IN 2023

Nintendo Switch Online GB/GBA emulators apparently leaked, Page 7

Analogue Pocket Review – A Retro Handheld Marvel - Game Informer

The Nintendo Game Boy Advance Clone