Just recently I got clued in to the fact that ESO does not appear to use my discrete graphics card. Instead of using my AMD Radeon R9 M370X (2 GB), it only uses my integrated
Intel Iris Pro (1536 MB). I updated to Big Sur not too long ago, but would not be surprised if it has never used my discrete graphics card.
I changed my graphics settings to Highest in the game and relaunched it, but it still only taps the integrated chip.
Repairing the game did not change this.
In the UserSettings.txt file the only reference to graphics I could see was SET GraphicsDriver.7 "Vulkan"
According to https://www.amd.com/en/technologies/vulkan
the AMD Radeon™ R9 Series is Vulkan-compatible (though they reference Windows and Linux OSes).
Is there some bworked setting somewhere I should toggle to fix this, or is this a known/widespread issue for macOS clients?