Question Overview of AR Layers and Difference between native AR App and Web AR

Hey Guys,
I'm trying to get a better understanding for the differences of WebAR and the native AR App, therefore I made a overview for each technology. I want to show the differenct approaches of accessing the hardware and input, also rendering the Image. Often for me it isn't clear if some tools are more of a software layer or just once used for compiling the unity code.
Basically let me know what you think, is something missing or wrong and if you got some sources to get an better understanding of the whole topic feel free to share.
Note: I will update the graphs from time to time...
AR App:

Web AR: