The video frame doesn't render; on macOS Firefox it shows "No video with supported format and MIME type found.", so I missed it. But looking at the pictures, it only has ISA slots on the expansion board, unless I'm missing something.

But I missed that part of your post. I haven't seen integrated VLB before, only slotted. Does this board have an expansion to 2MiB? Though that would only matter if you wanted higher resolution/colors.