You're absolutely wrong on a number of points. A SoC stands for "system on a chip", it refers to a single die (if you want to get pedantic, there are multi-die packages but this does not apply here) package, a "bare chip" if you will.
The ESP32 is a SoC. It's available in QFN packaging (Quad Flat Pak No Lead).
The ESP32 is available included with a number of "modules" (and of course devkits). These modules are designed for production use and it can be economical to do so. You clearly don't have the foggiest idea about these product lines so don't seem to be in a good position to comment on the economics.
https://www.espressif.com/en/products/socs/esp32
The ESP32 is a SoC. It's available in QFN packaging (Quad Flat Pak No Lead).
The ESP32 is available included with a number of "modules" (and of course devkits). These modules are designed for production use and it can be economical to do so. You clearly don't have the foggiest idea about these product lines so don't seem to be in a good position to comment on the economics.
https://en.wikipedia.org/wiki/ESP32