Sure. My mother quit smoking without getting the shakes or similar. That's why I wrote "some people". Addiction is indeed a spectrum. However, I haven't heard of anything of the sort in connection with quitting social media. So I suspect even the worst experiences of quitting social media aren't nearly as bad as some, perhaps many experiences of quitting tobacco, alcohol, heroin, etc. That's relevant to claims that social media should be regulated like those substances.