I tried to look for an answer, pardon me if I missed it.

It seems as OCIO transform node do not works on viewport (solaris/karma) level.
I know that I can set up OCIO filter in Karma node under filter tab to convert some paths, but it influence just the render to disk final result.
I also aware that I can drop a 8bit difuse to MTLX network and call it a day, but sometimes I love to keep all my texture library inside a project in EXR.

Did I missed a node? ; image/OCIOtransform/MTlx standard surface/collect (on diffuse level)

Thanks in advance if anyone can help me out with some information.