H1N1 is still around. The flu vaccine still includes it, if I'm not mistaken, which helps keep the prevalence low.
Also, as others pointed out, while H1N1 was more deadly for school aged kids, it wasn't as infectious. And thus it didn't have the potential to over run the healthcare system like COVID does. Additionally, to determine how deadly it was to society overall, you'd have to look at case fatality rates in different age groups and look at the potential impact of an entire classroom spreading it to one another and then taking it home to 30 different households. Some with grandparents living there etc.
Just looking at absolute values when it comes to deaths,while important, doesn't paint the whole picture of the impact of a disease.