I went from one stick (single channel) 16GB to dual channel 32GB and noticed a better smoothness / less or no stutters in comparable scenarios. Don't know if it was the extra bandwidth or was it more memory that made the difference. I did this with no real expectations but the end result feels like something has been "debottlenecked". I am using Kingston value RAM DR2666, nothing fancy. The above video shows lower CPU usage with the higher RAM config.
My config: i5 9600 K/F at 4.4 GHZ, nVidia 1660 Ti, Standard HD resolution.