How to know video Memory Usage that actually in use

Hello

I’m trying to figure out the vram minimum specification of my project to run my project with Quest 2.

There are a lot of textures in my project and they all seem to be loaded on video memory.
Even though there are only three actors with white material without texture at one level, the unused texture is on video memory.
This happens in packaged games.

I’d like to know video memory usage, including optimization in texture streaming options.
What should I do

This is picture of test level that only contains 3 actor

and this is memreport rhi log

MemReport: Begin command “rhi.DumpResourceMemory”
Tracked RHIResources (910 total with info, 11291 total tracked)
Showing 50 of 853 matched resources

almost resources is texture and they use 55.125MB each

Thanks & Regards!