Well, it was reproduced for the Wii U release of Super Smash Bros, together with an adapter that let you use GC controllers with the Wii U. If you have a USB 3 to USB C converter, this adapter also works with the Switch.
It’s not ideal, but you could in theory play Switch with a GameCube controller using only official Nintendo products (except the USB adaptor), all of which published many years after the production of the GameCube itself ended.
Well, it was reproduced for the Wii U release of Super Smash Bros, together with an adapter that let you use GC controllers with the Wii U. If you have a USB 3 to USB C converter, this adapter also works with the Switch.
It’s not ideal, but you could in theory play Switch with a GameCube controller using only official Nintendo products (except the USB adaptor), all of which published many years after the production of the GameCube itself ended.