Available evidence suggests that's true. It can also cause neurological complications, strokes, etc. We don't know the prevalence of such incidents, though. It can also lead to a very scary condition called MIS-C in children (https://www.cdc.gov/coronavirus/2019-ncov/daily-life-coping/children/mis...). So there is evidence that SARS-CoV-2 primarily attacks the lungs but can also spread to, and damage, other organs.