It’s unplayable and barely functional. Do you actually like it, or you just like the idea of what it could be?
There has been a multiplayer websocket .io game renaissance ongoing since 2016. Hundreds of multiplayer websocket games have been released in that time and they’re all objectively better than this, tech stack included. People like you are acting like this never happened, and I don’t know how you could actually be unaware of it. Some multiplayer websocket games such as slither.io are a worldwide phenomenon on par with Pokémon Go in terms of popularity.
In light of all that, I’m asking why you think this is cool because it doesn’t make sense to me.