You can't separate phones from social media, they have a symbiotic relationship and feed off of each other.

Without smartphones, social media would be much less pervasive and much less toxic, because people would not have an internet connected camera with them at all times. Fewer posts means less engagement, and even more importantly having to bring and then open up a laptop would pose a major barrier to doomscrolling behaviors. Some would do it anyway—there were lots of us who spent a lot of time online before Facebook—but not anything like as many as do now, which means it wouldn't be normalized. And without normalization, social media as it exists today couldn't really exist.

So, yeah, phones without socials would be tools. But phones created social media in the incredibly toxic form it exists in today.