Conditional clause: "If we watch a film or TV show with the family" It uses a conditional clause to express different ways of relaxing under different circumstances, enhancing the logic and situational simulation of the sentence.
Past participle as adverbial: "scrolling through social media" The past participle phrase functions as an adverbial, describing a not very active leisure activity, adding specificity and descriptiveness to the sentence.
Present participle as adjective: "spend hours scrolling through mindless videos" Present participle functions as an adjective, describing a specific behavior of wasting time, adding detail and criticality to the sentence.