good morning philm and happy holidays, I have to say that after the update this morning (9:51 Spanish time) thunar root works as expected from the beginning, ie responds in my case at the time of entering password, I ignore what would have been the change made, dbus-x11 is still installed on my system, I hope not to cause discomfort with the comment, it is only to report, thank you very much for everything.
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Nombre : dbus-x11
Versión : 1.12.20-1
Descripción : Freedesktop.org message bus system
URL : https://wiki.freedesktop.org/www/Software/dbus/
Licencias : GPL custom
Repositorio : core
Tamaño de la Instalación : 955,4 kB
Depende de : systemd-libs expat audit libsystemd.so=0-64
libaudit.so=1-64
Hacer dependencias : systemd xmlto docbook-xsl python yelp-tools doxygen
git autoconf-archive xorg-server
Requerido por : at-spi2-core avahi bluez chromium colord cups
dbus-glib dbus-python dnsmasq flatpak fluidsynth
ghostscript jack2 lib32-dbus libpcap libproxy
libpulse libteam light-locker manjaro-hotfixes
pipewire rtkit steam-manjaro systemd thunderbird
weylus-bin wpa_supplicant xdg-dbus-proxy
xorg-server zbar
Opcional para : alsa-plugins
Provee : libdbus libdbus-1.so=3-64 dbus=1.12.20
Entra en conflicto con : libdbus dbus
Empaquetador : Philip Mueller <philm@manjaro.org>
Fecha de creación : 08/07/20
Fecha de instalación : 03/01/21
Motivo de instalación : Explícitamente instalado
Firmas : Sí