I think on YouTube or in Tweetch or elsewhere you will find a lot of video records made by tournament players. Many at the same time comment on their actions. The main thing is you will see the player's cards, because watching the table from the side you do not see them, and if there was no showdown, then the logic of the players' actions often remains unknown.
Example: The player bet 3 BB, having 25 BB in the cut-off position, they all folded. You can only guess whether it was a
bluff or a strong hand. You do not see his ranges. What will you learn?