(its not mentioned in the patch notes, I noticed it testing 7.60 beta 6)
The in game FPS counter has had a new counter added, VMEM usage.

.
No need to flash up any third party monitoring tools or Windows Game Bar taking up memory/processor time itself, just use the in game one.
If you havent used the in game fps counter before, you just need to set a toggle key for it in settings, Controls - General - Expert.

Also note:
I found out from the devs that 7.60 uses up as much VRAM as it can get .. Anyone else with a graphics card with only 6gb VRAM, and you have all DLCs, try setting the Texture Quality to Low. It helped my Laptop immensely, and does not visually lower the quality of textures while playing, I thought they might (as in other games using dds textures) cut out higher mipmaps, but this game doesn't do that, they cut down selectively on things like normals (bumpmaps).
See timon37's post in response to this one during beta testing viewtopic.php?p=5277643#p5277643