"Spawn," the noun, is literally the eggs of a fish or a frog or anything that lays thousands of tiny eggs underwater.
It can also mean the thousands of tiny fish or tadpoles that emerge from the eggs.
The verb "to spawn" means to deposit thousands of eggs, or to produce thousands of offspring.
"The salmon swim upstream to spawn.
Figuratively, then, YES, "to spawn" can mean "to produce a lot of things."
But it also carries the ideas of EXUBERANCE and FERTILITY.