The boot directory on your file system is where the system gets it from to put on G. It’s left there for recovery/repair
But you still have a G partition for the boot. It lets the computer itself have an easier time finding it (think labeled as boot). Your ssd is divided, it’s not a 2nd physical disk
The letter is arbitrary, so is C. It’s just the default
So he could ask Valve who, if the fanboys are to be believed, might actually do something about it, or go ask Elon to fix Twitter who will certainly not