Is it normal for people to spend so much time on social media?

Someone I know is addicted to social media. We looked at her usage and she spends an average of 7.3 hours per day on social media. Yes, even while at work. The scary part is, she seems to feel genuine excitement and happiness when she watches TikToks or sees instagram posts as if it were happening to her. For example, she’d see a random person on TikTok climbing a mountain or something and she’d show it to me super excited as if she was the one climbing and showing me videos she took. The worst part is, she seems more excited about watching other people live their lives than she does about living her own life. She just sits on the couch all day and watches these videos and reads posts from people she’s never heard of before. She also denies that any of this happens. She thinks she briefly checks social media a few times a day and denies that the phone usage feature is accurate. It’s starting to really worry me. From my point of view, it feels like I’m watching a drug addict rotting on the couch. I am a few years older than her so maybe I’m just getting out of touch...so I’m wondering: is this just the norm for younger people these days? If you can, please vote on how much time you’re spending on social media. Please be honest.