Have you ever placed a bet by just doing random guesses on the outcome of the game?
Of course, everyone will have experiences like this in any case, including gamblers in gambling, I myself when I did not know more about soccer then wanted to try it, it relied on guessing because I only knew the name of the team and did not know how the history, statistics and even players.
For example, I only knew Ronaldo at that time and then I chose to bet on Real Madrid, without knowing the structure of the players and the course of the Real Madrid match with the team he was playing against, so I thought it was just a guess.
Even though it's just a guess, you have marked up some knowledge in this sports game, you may not know the history or statistics of the matches,
just knowing the popularity of a few players is enough to have an extra betting percentage to rely on, human consciousness does not allow for a random guess, they guess based on what they have heard and also what others have passed on to them. Betting is always a mixture of more or less knowledge plus a percentage of luck, winning will increase more due to our knowledge but this percentage cannot surpass pure luck.