https://bugzilla.kernel.org/show_bug.cgi?id=196615
--- Comment #26 from contact@florentflament.com --- I just figured out that if instead of opening a 'Gnome on Xorg' session, I open a 'Gnome' session (which, as far as I know, starts a 'Wayland Display Server' instead of Xorg on my Fedora setup), then I don't have any more issues resuming after a suspend. It works pretty well, no more amdgpu related error messages in my journal.