Different from what the Lodestone says also. Which I had been looking at before these threads started popping up today. Monk, for example, can borrow abilities from LNC & ARC according to that site. These charts have shown LNC & GLD. A case of Lodestone having wrong or old info perhaps. Have the cross-class options been changing along the way?
Lodestone information is very dated, and has been irrelevant since the end of 1.23.
If you look at the chart, some classes do share affinity, but for the most part, everything has been completely redone.