Technology doesn't in itself eliminate scarcity as long as raw materials and natural resources are scarce. In this case, all technology does is allow more efficient control over these resources and their by-products. Everyone having their own pet AGI on their cell phone doesn't materialize food or fresh water.

AGI is still a concept from science fiction. If we talk about modern LLMs (that are indeed impressing) increasing food production is not what they are about. But this doesn't mean that technology doesn't help there. Green revolution for example literally made more food materialize.