They need to be minimized (and unminimized), and then, they can be moved or resized normally. This also happens after half-screen(?) maximization. This doesnt happen in Xorg session.
Actually resizing an app causes the problem not only maximixing.
I can replicate the issue. Exactly same behaviour, happens every time a csd gtk app is resized.
This bug is also reported at Gtk Gitlab: https://gitlab.gnome.org/GNOME/gtk/issues/1163
Closing this one as resolved upstream for now as recommended on gtk gitlab.