Can you try something for me? We're trying to find any application that could be casuing ffxiv_DX11.exe errors or any Nvidia DLL errors.

Could you go into Discord and make sure that the Discord Overlay button for Discord is red.

Cog Wheel (Bottom Left) > Activity Status > Final Fantasy XIV > Monitor Icon on right is Red.

Also, is it ONLY a DX11 error or is it the ffxiv_dx11.exe thats crashing?