Obviously there are downsides...addiction, children having too much screen time, talking to predators. However, when used safely it is a marvellous thing.
On my long bus commute to work i can listen to anything i want on you tube, go on mumsnet, browse recipies etc.
Dd had free conference calls with mates during lockdown via insta.
Im not that bothered about social media and have learned to roll eyes at the bragging/ bullshit...but i wouldnt be without it...although i would like to cut my screen time somewhat!