Multi-Objective Recommender System- A need of the hour

My reading so far, is that designing and implementing a real time automated recommendation is a probem that requires multiple objectives to solve and this is the need of the hour. . Such multi-objective system needs competing objectives of consumers, possible tensions between goals of different stakeholders, conflicts when optimizing for different time horizons, competing design choices at the UI level, as well as system-level and engineering-related considerations. Solution I am using the @kaggle competation is kind of enesemble modle RNN, Transformers and Linear Programming.