Carlsen is definitely the exception. He plays interesting opening moves, and not just for experiment but long-term. However, the rest rarely play opening choices like he does.
But elite GMs have to play with proletariat, which is we. A 2300 barely can get invited to a closed round-robin and prepare so deeply.
I have played in tournament halls that look worse than a flat in third-world country. Sometimes no air conditioning at 30 C+

But these elite GMs play each other wearing suit and sipping tea, but struggling IM lives like homeless trying to have a living on any winnings from open tournament.
I sometimes watch few minutes of the retransmission of elite events, there is no connection to the proletarian chess. The "win as White, draw as Black" philosophy plus openings like Berlin Wall and QGD really reminds me of millionaires at golf club.
Honestly, I think that this is the proletarian feeling. I was watching a retransmission of Grenke elite round robin in Spanish recently. One commentator was saying about how hopefully the games are exciting today, because he saw that for once no player had played Berlin Wall. Not very good advertisement for chess if one must look for Berlin Walls before they get interested.
Of course Carlsen is exception, but rarely you see what happens in big opens, where players of all levels even GMs risk their balls and play on instead of trying to fizzle out draws.
Exceptions of 2700+ GM that play big open are Adhiban, Grandelius, and such. Would be nice if required that Anand, Giri, Vachier-Lagrave, Caruana and others had to play these big opens every month.