This is really what Strange New Worlds is most about: giving us precious knowledge about what our heros in the original Star Trek were all doing before we met them on the Enterprise in the TV sets in our living rooms in the 1960s
I respectfully disagree. I don’t think the most important parts of this show are the things it depicts legacy characters doing, though your review mentions little else.
Given your clear fondness for TOS, I’d be interested in reading you compare the two more!