Self learning sensor

From what you are writing I believe it is much easier to add a few motion sensors and some not-tto-smart automation. But possibly you are trying to keep it relatively simple (appreciated…seen too many posts with massive text)

If ever this rises, I would love to use AI but not for predicting a combi of motion/light… that makes no sense (to me)

Taking Home Assistant to the next level. Home Assistant… Assistant? - AI-powered Machine Learning for HA - Development - Home Assistant Community (home-assistant.io)