Glad to speak with someone of your experience! Certainly when I first started teaching 3D, we had to choose between Blinn, Phuongs, Lamberts and suchlike. Diff

Glad to speak with someone of your experience! Certainly when I first started teaching 3D, we had to choose between Blinn, Phuongs, Lamberts and suchlike. Different objects would be assigned different shaders. That alone made workflows tricky. This was around ten years ago. Getting apps to talk to each other was hit and miss. In VFX, two shader results in two different apps that are slightly different in impact may as well be very different. Though Blender has lots of legacy shaders, I forbid students from using anything but the principled BSDF. This lock-in to one shader makes life a lot easier. Also, the Substance painter to blender to unity consistency is now pretty slick.