The majority of games advocate using 16GB of RAM, which will significantly improve performance above 8GB. Additionally, you will be able to operate programs in the background without interfering with the game.
Are you asking asking a question? Or, making a statement?
32GB (2x16GB) is the sweet spot in terms of cost and performance, in my opinion, particularly with high-end, modern AAA games. Of course, overall system performance balance is more important with memory just being one factor for consideration.