Making art for the sake of it might mean different things to some than others. To me, it means working on all the projects I never had the time/energy/courage for.
It means ignoring the self-doubt that says “this is crap, no one will like what you’re doing”. It isn’t about what other people like.
It means accepting that the real art is in the creative process, and the final outcome, the body of work, is only the last representation of that artistic expression.
It means submission to our own creative powers, whatever they are, for the sake of it.