fz-survival-datapack/data/fz/advancements/leavegame.json

{
    "criteria": {
        "leave_game": {
            "trigger": "minecraft:tick",
            "conditions": {
                "player": [
                    {
                        "condition": "minecraft:inverted",
                        "term": {
                            "condition": "minecraft:entity_scores",
                            "entity": "this",
                            "scores": {
                                "leaveGame": {
                                    "min": -2147483648,
                                    "max": 0
                                }
                            }
                        }
                    }
                ]
            }
        }
    },
    "rewards": {
        "function": "fz:login/onlogin"
    }
}