By that logic, everything is addictive

Everything can be addictive. That doesn't mean everything is designed that way. The key words here are intentionally designed. And nearly all modern games have intentionally addictive design elements, from how the UI is presented, down to how the game feels. Most major game studios literally have psychologists on staff for this very purpose, while smaller studios copy a lot of the same ideas and elements into their games without even necessarily knowing the things they are copying to be like The Current Big Hit were originally designed to be addiction machines (aka Skinner boxes).