From Wikipedia:
Hikaru in 2014 on chess960: (emphasis added)
I think chess960 is great as it is simply pure intuition and understanding without theory or computers. In my opinion, a lot depends on the trends. For example, at the moment everyone is playing the Berlin Defense which has severely reduced the number of games with 1.e4. If this trend of attempting to "kill" the excitement continues, it is hard to believe 960 won't take over at some point. However, if we start seeing a lot of deep preparation and exciting games in the Najdorf or Dragon, then I think the scope of normal chess will continue for a very long time.
Hikaru in 2022 on chess960:
The opening decides everything. If you get a good position, it's very easy to play I mean: It's a lot of fun. You're just enjoying it. (...) But if you get a bad position right away it's very -- I mean, you're just like ‘Why am I playing 960 instead of playing normal chess? I'd much rather just blitz out 20 moves of theory’.
Question: So what was the trend in the past 8-10 years? Were there more Sicilian Najdorf or Dragon games? Or still Berlin and stuff as back in 2014?