Since release of Endwalker, queue positions were reservated when you disconnected from the lobbyserver.
Today I've been to less than 300 in queue twice, before I had a disconnection from the lobby. Both times my ISP connection was up.
But after logging in and queueing up again within 30 seconds of disconnecting, I had to enter at the back of the line (2000+).

Is queue reservation dropped recently?

Walking to the end of the world is easier than logging in to Endwalker.