Not seeing a date on the website beyond the recent file modification date of the file, but just today I was looking into video streaming (MJPEG over HTTP) from ESP32-CAM, and it's actually in the Espressif's examples for it [1]. Apparently there are web server projects for it around [2], too; would be rather surprising if the first such website appeared only recently.

Edit: though maybe ESP32 SoCs with RISC-V processors aren't that common among those other ESP32 ones.

[1] https://github.com/espressif/esp32-camera

[2] https://randomnerdtutorials.com/esp32-web-server-arduino-ide...