In a typical home electrical panel installation the main ground wire is connected directly from a ground rod driven into the ground to the ---main breaker switch?

Yes, the main ground wire is connected directly from a ground rod driven into the ground to the main breaker switch in a typical home electrical panel installation.

No, in a typical home electrical panel installation, the main ground wire is connected directly from a ground rod driven into the ground to the ground bus bar, not the main breaker switch. The ground bus bar is where all the grounding conductors and neutral wires are connected together, creating a safe path for electricity in case of a fault.