This is a dual question but the answer from the first part directly leads into the second.
Watching Magic the gathering streamers I've heard the term "Garbage Time" used occasionally. It typically refers to when the opponent is losing the game, but do we have any definitive definition for the term or a possible set of conditions that indicate it is Garbage Time?
In what settings is appropriate for a player to scoop to Garbage time? Such as if a deck is caught in a Teferi lock, as posted in this question. Or in the case a deck has their main or only win con peeled from their deck, such as Unmoored Ego removing all copies of Lotus Field from the Pioneer Lotus Storm deck. Would it be expected for an opponent to concede a game they have virtually no chance at winning*?
*excluding if the opponent was trying to push the timer in order to get a draw