One more thing can be done in this sense, again inspired from that screenshot,
-
how about that the rhomboid node idea is tested for a “function” - that is, the custom node grouping with input/outputs, the input arguments come at top, the output goes at bottom, and the processing on a function is done horizontally…
-
other super-naive idea can be that the geometry flow nodes flow horizontally, and the field nodes flow vertically.
[screenshot of other software removed] see https://devtalk.blender.org/t/copyright-guidelines-for-devtalk/