First time hearing about Esports betting

I was browsing through Lottoland’s sportsbook, and I came across the option to bet on video games (e-sports), and I had no idea this was even a thing! It got me really curious, how does betting on e-sports work compared to traditional sports? Are there specific games or tournaments that are more popular to bet on? And what factors do people consider when placing bets on video game competitions? I’d love to hear from anyone who’s tried it or knows more about how the whole e-sports betting scene operates!