Important to note this section of the article:

During the period examined by the new study, Gaza's health ministry (MoH) reported that 37,877 people had been killed in Israeli attacks. But the Lancet analysis estimates that the death toll during that period was 64,260, with women, children, and the elderly accounting for nearly 60% of the deaths for which details were available.

That count only includes "deaths due to traumatic injury," leaving out deaths from starvation, cold, and disease.