While I think regular jobs, or at least my job, are much more hectic, I think you’re forgetting about the business side of things. Negotiating contracts, business acquisition, that type of stuff. Sure, that will largely be done by a manager, but it will all go through the influencer as well. Discussing content with brands, having all of that approved etc.
But yes, I can’t image it being too much work, simply because of the fact that they have so much time to do all of that cabinet reorganising and yoga during the day, which are things regular people have to do in addition to their work.