Step 1 on your long journey. Install Arduino for ESP32. Run examples. Learn how ESP32 works. You can find videos on Youtube if needed.
There is one example include with the ESP32 board package for a Camera Web Server. This might or might not work on your board. There appear to dozens of similar boards which might or might not be compatible with the example code.
You should have purchased the other board since it has a micro SD card slot.
The 1st module you wanted to buy is the ESP32-CAM module I have and use without issues.
The 2nd module link says it is ESP32-CAM as well (other form factor)
So the CameraWebServer example should work, see the instructions on how to compile here:
Later you might be interested in thread "Adding features to Examples->ESP32->Camera->CameraWebServer" as well:
First I added "Flash" toggle,
later much more for ov2640 global external shutter work: