@Davidola
Integrated video (iGPU) does not have room for keep VRAM, it relies on System. System will work this out and allocate/assign spare/available system RAM to VRAM automatically when required up to max limit. System will also take VRAM back when required (the number is dynamic, not fix). During the good old days, we could do this from BIOS but now OS is smarter.
The following document shows Max shared RAM for Intel iGPU versions
https://www.intel.com/content/www/us/en/support/articles/000020962/graphics-drivers.html
Note: Recently people post Youtube on internet saying they can change using Regedit. Many people try but the results are unpredictable.
Regards
BH***
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