Scans from the non-canon crossover, Darkseid/Galactus.
Galactus arrives on Apokolips, and Darkseid mobilizes the armed forces, to no avail.
Darkseid animates huge sections of the city-scape to attack Galactus. Big G initially struggles with the assault, but as noted he is weak due to his hunger
Eventually SS arrives and dispatches the monsters. Darkseid decides to reveal SS's past to him in an effort to turn SS against Galactus. The plan works. However Galactus either effortlessly 1. kills/one-shots SS or 2. strips him of the Power Cosmic.
This is the controversial scan (this is also the very next page after the above scanned page) that shows Darkseid using the Omega Effect on Galactus.....but the Omega Effect FAILS to have any success with erasing Galactus from existence:
On the very next page, Galactus stands unphased while DS stands in disbelief. There's no mention that Galactus willed himself back...just shows that at point blank range, the Omega Effect did not succeed. The same can't be said for the Power Cosmic however, as Darkseid is blasted out of Big G's face.
Next, Heavy G revives/resuscitates/re-empowers SS
Orion flees, Darkseid looks hurt.