This should be a Y since the manjaro-gdm-theme package does not exist anymore. Note the line Conflicts with
$ pamac info manjaro-gnome-settings
Name : manjaro-gnome-settings
Version : 20220519-3
Description : Manjaro Linux Gnome settings
URL : https://gitlab.manjaro.org/profiles-and-settings/manjaro-gnome-settings
Licenses : GPL
Repository : community
Installed Size : 13,1 MB
Groups : --
Depends On : adw-gtk-theme gnome-wallpapers manjaro-base-skel manjaro-gdm-branding qgnomeplatform-qt5 qgnomeplatform-qt6
ttf-hack xcursor-breeze
Optional Dependencies : lighter-gnome: disable some gnome-settings-daemon components
papirus-icon-theme: default icon set [Installed]
manjaro-wallpapers-18.0 [Installed]
illyria-wallpaper [Installed]
Required By : --
Optional For : --
Provides : manjaro-desktop-settings
Replaces : manjaro-gnome-settings-gnome-next manjaro-gnome-assets
Conflicts With : manjaro-gnome-settings-gnome-next manjaro-gnome-settings-19.0 manjaro-gnome-assets manjaro-gdm-theme
Packager : Mark Wagie <mark@manjaro.org>
Build Date : vr 20 mei 2022 00:32:21 CEST
Install Date : vr 20 mei 2022 16:37:05 CEST
Install Reason : Explicitly installed
Validated By : Signature
$ pamac info manjaro-gdm-theme
Error: target not found: manjaro-gdm-theme
more info here: