I am running a NVidia GeForce RTX 2080 Ti on one station and compile on a station with NVidia GeForce GTX 1070 and GeForce GTX 760. I have removed the 10.1, 10.2 folder leaving the 11.1 folder as I could not see a clear description of using more than one.
I have compiled the most recent LineArt Branch and will post it to see if it works any better for others, as it works for me as is.