The TikTok obsession is out of control

So my 14yo has gone full TikTok addict. She's on it constantly, and now she's trying to become a "content creator" which basically means filming herself lip syncing for 6 hours a day. I've set screen time limits but she just works around them. I'm worried about the algorithm stuff, the comparison trap, body image issues - all of it. But she also feels like this is her social life now and if I cut it off completely we're heading toward a big fight. I'm genuinely lost on how to handle this without being the bad guy who ruins everything for her.