I had this weird but funny glitch where there were only 2 players. So basically, I had 4 players, but right when I pressed the start button, 2 players left, meaning there was just me and another guy. The game didn't end, instead it continued.
Then that other player killed me, and the game continued because Among Us thought there were 4 players in the lobby, not 2.
And if you don't believe me, it's possible to get that glitch.