This has been a thing for longer than I can remember. Many many years, it should only depend on what your QR scanner are capable of (and that will vary since most use their default camera app for scanning QR codes and most manufacturers ship their own - but by now I hope even older phones have it).
Android 10 made som more specific features for this, such as automatically generating the QR code for others and scanning QR directly from the wifi settings.
But on other versions, it depends on the 3rd party app you use for QR code scanning. From the screenshots, it seems like certain versions of Android have this available directly from the Wi-Fi password screen, without the need for a 3rd party application.
Are you deliberately trying to be confusing? A "bundled camera" is the exact opposite of a 3rd party app. 3rd party would mean one must install it from the playstore.
Android 10 made som more specific features for this, such as automatically generating the QR code for others and scanning QR directly from the wifi settings.