This is not correct.

Contrary to the earlier notion that addiction is predominantly a substance dependency, research now suggests that any source or experience capable of stimulating an individual has addictive potential. This has led to a paradigm shift in the psychiatric understanding of behavioural addictions. These can refer to a range of behaviors such as gambling, video gaming, and sexual practices. Hypersexual behavior and pornography addiction come to the fore when the behavior becomes intensive, out of the individual’s control, and persists in that pattern despite harmful consequences and risk of harm to one’s emotional and/or physical health.

https://journals.sagepub.com/doi/10.1177/26318318221116042