If you look at Go64 results, it shows components that are inside an app that may otherwise be 64-bit. I have one, SilverFast8, which hs in it drivers for a slide scanner I have. The scanner driver is 32 bit, while the rest of SilverFast8 is 64 bit. It runs under Catalina until I try to scan a slide, at which point the 32 bit process fails. The scanner vendor is working on a new driver, which is nice. But Go64 flags the driver as being 32 bit, while SilverFast itself is 64 bit. That may explain some of the difference for you.