Magnus Carlsen is still absolutely destroying anyone else in his 30s. By far.
He didn't compete for the world champion becaue he didn't want to put in the effort for the preparation (again). Also it would have been boring if he played it because he would have won again.
He intentionally starts with subobtimal openings at major turnaments because of boredom and still wins.
Yes, magnus carlsen is a legendary player/the best player right now, there isn't much denying about it.
Regarding boredom, I think that either it was magnus or hikaru who are/were really optimistic about chess960 (randomized chess essentially) because they have less value to openings and more values to the more live-ness of the situation so it has some exciting element to it.
At a certain point for magnus, there really is only enough excitement within classical chess if you are the best players in the world. But he seems excited about chess960
(Edit: you have accidentally made me wonder but would hackernews like a chess club of our community [preferably within lichess]?) https://lichess.org/team/hackernews-chess-club (The password is dang) :]
Edit2: Interestingly, there is already a hackernews-chess-club after searching back on hackernews, https://lichess.org/team/hacker-news, but they had the idea 6 years ago interesting :)