We think that watching with bet is way more thrilling than watching it without a bet. But if you are too nervous and you can't have fun, it's better not to watch it at all.
I think it all depends on the person, because there are those who just enjoy the game and there are those who enjoy the game while looking for profit, of course by placing bets on a game it makes the atmosphere more cool or more tense, because there we have money at stake, of course everyone wants the bet to win but not everyone will be lucky there will definitely be losers and winners.
I myself like to bet on my idol team, because I have an idol team that I think this team can beat all its opponents so that's why I dare to bet. in order to add to the sensation of watching also becomes more exciting.