Debian Trixie - GDM - Banner Message

[Taishaku <taishaku.ten331@gmail.com>]

Dear Debian community,

I recently upgraded from Debian Bookworm to Trixie, and I couldn't help
but notice that my configuration in /etc/dconf/db/gdm.d/ doesn't work
anymore.

I tried updating the dconf database with `sudo dconf update` but this
didn't solve the issue.

Is there a new way to configure GDM settings?

I have quite a bit of custom settings, but the ones that I care about
the most are the banner-message-enabled, banner-message-text and
disable-user-list settings.

My settings are configured according to the documentation here:

Banner: 
https://help.gnome.org/admin/system-admin-guide/stable/login-banner.html.en

User list:
https://help.gnome.org/admin/system-admin-guide/stable/login-userlist-disable.html.en

Best regards,

Taishaku.