To clarify what leading a working group includes, I’ve added the following paragraph to the original post:
That’s great! I’d suggest leading one group per person, to make sure the workload doesn’t get too high and others can lead working groups as well. However participation in all discussions are encouraged! Do you want to take one of these topics and start a problem statement thread?
I personally think it would be great if somebody who can’t regularly join the Reps Call would tackle that, indeed! Do you want to create a post to gather exact problem statements and lead that?