Yes, and it is still being worked on so should eventually play most if not all non-DRM HW sample sets. As for DRM, I wonder if eventually some way of playing these sample sets will be accommodated since that has more to do with iLok than HW.

But in the meantime we also have another option, OdfEdit which converts HW odfs to GrandOrgue odfs allowing HW sample sets to run on GO. It works well for many HW sample sets but some GO odfs generated by OdfEdit may still need a bit of tweaking since not all more recent HW sample set features are implemented in GO and can cause issues.

Lars:
I use Linux Mint running on a mini computer with plenty of RAM. Linux Mint uses much fewer memory and CPU resources than Windows, allowing more room in memory to load the sample sets, and run them faster.
But with some sample sets there can be an issue. Linux is case sensitive while Windows is not. There are sloppy organ definition files which will reference a sample whose file name has a different case, for instance, a reference to a file with a lower case "a#", while the actual sample set file is named with an upper case "A#", or vice versa. It can be a bit time consuming if there are many but the Linux version of Grand Orgue will flag the errors as file not found while loading, so one can cross check and change either the file name or the reference to correspond with each other.