Earlier quoted context omitted.
I suppose in the usual lichess watchers bubble, everyone knows who Gukesh is and how old/young he is :)
Why the snark? Is it so surprising that spectators following a world championship match in any sport would know something about the competitors?
The article itself is written assuming everyone knows who Gukesh is and says nothing about him, just his most recent matches that got him the title.
Definitely written for a bubble.