In an interview with Rustam Qosimjonov published three days ago, he claims that Fabiano Caruana is currently a better chess player than Magnus
https://youtu.be/KZydtQfdYNc?si=myY7fqus5_tJE_GT
Rustam claims that from the games he watches and the quality of play he sees, it's clear that Fabi is currently the stronger player and that he would also be the favorite to win against Magnus in a World Championship match today. He told his students (Arjun, Nodirbek) that over the past two and a half years, to be the best in the world, you must consistently beat Fabi. He claims it's surprising that Fabi has improved his level so much because this usually doesn't happen, and the level of player he has become is not the same level as the player he knew when he worked with him.