The 2 hard blockers to build gnome-control-center 42 are that we need GTK4 builds of libnma and colord-gtk.
https://salsa.debian.org/utopia-team/libnma/-/merge_requests/2 I intend to update colord-gtk based on how we handle libnma. There is a softer dependency on the NM VPN plugins being rebuilt for GTK4. Softer because gnome-control-center will build without them but it would still be an annoying regression. Thank you, Jeremy Bicha