What is a friendslop game?

This game is neat and all, but I don't understand the blitzkrieg of popularity for what is essentially a different take on Prop Hunt.

Did he pay a bunch of streamers to play it, and popularity did the rest?

Seen a ton of videos of it and the one thing I have to ask is why so many people think hiding against a wall is a good idea even if you can paint yourself perfectly; you still pop away from the wall so unless the seekers look at you head on, they will instsntly spot you.

The best ones are when all the hiders join together and become their own piece of furniture lol