Start with the basics - layer belonging of AAVE

Hi community,

i am a crypto student and i want to understand AAVE better. Starting with the classical layer categorization, where would you put the AAVE primitive. In my opinion, AAVE is a lending plattform based on chainlink. Thus, i would see AAVE as an typical layer 3 (application layer). What is your opinion? Is my thinking to simplified?

Regards,
Marcus