I would say at least since udev was merged into systemd and gnome adding an hard dependecy on systemd-logind [2], both in 2012 so I would say more than 10 years.

To me that this was an act to force a Redhat-led project through other Redhat-led projects.

[1] https://lwn.net/Articles/490413/ [2] https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/commi...