Players who haven't logged in for more than 20 days and are above level 20 (including level 20) can get the glory gift package of old players × 1 during the event, which can be obtained by logging in directly.

This is a requirement. In fact, it takes 30 days to get it every day. The return of old players is a task. You can gain more guild contributions and experience every day. I don't know the duration. The gift package you are talking about is an activity that comes out at some time in the game. Old players who log in during the activity can get an extra gift package, which has not been sent to you by email yet.