OpenGL canvas Update

I just went through the same thing and the problem turned out to be that I had not purged the KiCad files in my AppData\Roaming directory. After deleting all of my v4 stuff and reinstalling v5, models have wrl and step files, and 3D Viewer and 3D export both work. See What am I doing wrong - 3D - #14 by JuliaTruchsess

With regard to the original topic, in v4 I only ever used the default canvas because I just couldn’t stand the look and feel of the OpenGL one. Never felt I was missing out on any features. Now that I’ve switched to v5 I have no complaints; it’s vastly improved in many ways and I’m not looking back.