What software suites are these companies using? I know some of these huge companies have their own in-house stuff but are the big commercial modelling products supporting linux now? I wasn't aware there were really options aside from blender. Also kind of surprises me that artists would be happy on a platform where you can't fire up Photoshop to muck around with a texture map.
Pixar develops and sells RenderMan. The engine itself support Linux as the primary use case, but also Windows and macOS. They all support the same feature-set with the exception of Optix on macOS.
Back when I was doing a lot of 3D and other work that required Photoshop, I used a VM in Linux to make that work. This was back in 2008-2009 though, so I'm not sure if others do that anymore or just use a different PC, other software, etc.
