What Coke offshoots have actually landed? Like Zero, Diet, Cherry, Vanilla and maybe Lemon?

MXM GPUs never really caught on, and nobody builds their own laptop, it’s just not a thing like it is with desktops.

Best option if you want upgradable graphics would be an external Thunderbolt dock, but even then there are plenty of caveats there.

Respect

They are called “dollar bills” for a reason.