Thanks for that link, quite interesting. He does provide a lot more details. From what I can tell, it seems the Gnome 49 changes would basically require a couple of new services, but nothing too crazy (I might be wrong, maybe these are not actually that easy to set up). For Gnome 50 seems even more difficult, no idea if there is already something that replaces systemd userdb.

I wish Void and other distros who do not use systemd at all, stop supporting GNOME 49 and onwards altogether, since now they are so hostile to non-systemd environments.

I get your sentiment, but I would like to keep using Gnome on void, if possible.