Why is VRAM so high and how to find out what's using it?

Hi @Midisport_8x8s,
I wrote about this when trying to reduce my Dedicated GPU usage in my article
How to Improve Texture Streaming GPU performance in UE5 over 20% increase on GPU memory [Solved]

In this file I found
D:\Program Files\Epic Games\UE_5.0EA\Engine\Config\Windows\ WindowsEngine.ini
The following lines contained
[TextureStreaming]
; PoolSizeVRAMPercentage is how much percentage of GPU Dedicated
;VRAM should be used as a TexturePool cache for streaming textures (0 - unlimited streaming)
PoolSizeVRAMPercentage=70
and I change this as the instruction said to 0 and now it works fine.
I only have a GTX 15050 2GB, but your RTX2060 has the same problem.
Someone even thinks it speeds up UE5 Editor startup on an SSD.