Twitch and Facebook Gaming set new monthly viewership records in December, at 1.7 billion hours and 388 million hours watched, respectively.
According to StreamElements analytics partner Arsenal.gg, Fortnite was the most-watched game for the month at 81 million hours, followed by League of Legends at 77 million, World of Warcraft at 76 million, Minecraft at 58 million, and Cyberpunk 2077 at 53 million.

Twitch, Facebook see best months for viewership yet in December | GamesIndustry.biz