Hello, thank you for your answers. Of course, the best way to improve is to play a lot, but high roller tournaments are mostly made up of better players. Even if you don't see their play in every hand, I think there are some situations to learn. When I watch a tournament like this I try to guess the cards of the players, who will win the hand and how. I find the dynamics of big tournaments interesting because there is a lot to be won and all players need to play their best poker.
Otherwise, streamers are also a good working tool. They give some tips and tricks about poker. Even if you don't necessarily agree with certain actions of the player who is streaming, it allows you to see several different player profiles and I believe that it can help on your own way of playing.
I also watch EPT tournaments and stuff in the background during my poker sessions. It does not allow me to play better because I am not attentive to what is happening but it creates an atmosphere that I like