Is it possible to track all the news in social networks by keywords?

Question

Social media

Good afternoon,
I will say right away that I am a complete layman in the field regarding this issue, so I apologize in advance if it causes someone to facepalm, but still I will risk it.
Guys, is it theoretically possible to create such a resource on which one could track all the latest updates of any one person in all social networks in which he is registered? For example, let's take the actor Vasya Pupkin, who has accounts on Instagram, Twitter, Facebook and Snapchat. We are very interested in Pupkin's life, but it's difficult and a little too lazy for us to keep track of all his news in each of the applications separately, and we would like to be able to see all his updates from all social networks with one click, but at the same time, somehow interact with a single post can, of course, only directly, in the applications themselves. This may concern, of course, not only Pupkin, but also other people, not even people, but events. In general, keep track of hashtags from all social networks.
What do you think?