They describe a leaderboard built from server members' shared gaming activity, while actual rollout remains unconfirmed.
When It Appears
“Who has the most total game time?” can appear on a server view that ranks shared gaming activity and shows a timed competition when Discord displays the competition question ranking who accumulated the most total game time.
When “Who has the most total game time?” is shown, the current step is presenting the competition question ranking who accumulated the most total game time.
Search Intent
A user who saw “Who has the most total game time?” in Discord is likely searching to confirm that it means the competition question ranking who accumulated the most total game time, where it appears, and which state it describes.