There's a project here: switch-gba by BFriedrichs for running a GBA emulator within the switch browser. I haven't tried it yet, the requirements are Docker + a PC with ROMs on the same network.

Because of that last requirement it's not going to be easy to have a simple link for playing a GBA game without having a locally networked PC serving the copyrighted content as well.

Also worth mentioning: the GB Operator is one legal option for getting a ROM file from a physical cartridge.

@VGMoose thx

a good question , i will have a think on this and see if there is a way .. i guess we can incorporate something on this site but if you browse away from here i guess there's not much we can do.

@VGMoose NO......IT CANT BE!!!!! NOOOOOOOO!!!!!!! why wasn't i told this before

yes but im still trying to put emojis on shoutbox
because guess what?
im on a switch 🤡