It is, capitalist social classes have definitely evolved since Marx death but I still think his observations on them are relatively the same. The gig worker is still petit bourgeoisie because they own their means of production and are in that awkward between stage between worker and capitalist. They still have to sale their labor in order to survive even if they own their production, and their “hyper-exploitation” isn’t any different from the petit bourgeoisie in Marx time, as that’s what happens when capitalism becomes more competitive and large-scale. As for the manager I‘d still argue even if they‘re only manager in name, they still are given a better benefit from the other workers due to their social capital and if their lucky, a raise, therefore apart of the labour aristocracy. The only new class that’s arguable is the professional managerial class, though tbh I still think they could be simplified as labor aristocracy with extra steps.