Is there an authentic narration that condemns or warns against whoever leaves the mosque first after prayer?

There is no established religious text that condemns or warns against being the first to leave the mosque. Indeed, some Companions quickly exited the mosque during the time of the Prophet, peace and blessings be upon him, without condemnation. However, remaining in the mosque after prayer, while engaging in acts of worship, is religiously desirable due to its great virtue, as the angels pray for the one who remains in his prayer spot as long as he does not nullify his ablution.