TheBigCore: Since we're on the subject, if you bought Wolf3D with the separate Spear of Destiny offline installer that still included the two additional mission packs, GOG had also included The Elder Scrolls: Arena and Daggerfall. Those two Elder Scrolls games were also quietly removed from your GOG account as well.
Yep. This two just unbundled although. No updates to files. And those files now available for free for everyone.
Two TES games been bundled with every Bethesda game. So most likely ppl who bought Wolf3d got TES from previous buy (RTCW, Wolf2 or TES main series, etc)
Wolf3D got update to include SOD. And like on Steam it is come here as NEW entry in Library with both Wolf3d/SOD old KEEP separated.
But Bethesda and GOG even did make differ bundles for it mess it to replace old one with new one for old buyers.
Look to GOGDB for reference whats happned with SOD.
Contact Wupport if your library didnt return TWO OLD entries. Should be THREE Wolf3d in Library (look to GOGDB for their IDs). It is two on Steam with SOD separated and three on GOG with older one come WITHOUT bethesdas LAUNCHER. Just like it should be stay here.
Old buyers can contact Support if refresh-page not work for them.
I suggest everyone contact Support to get separate SOD. Just in case GOG will add it too even if you just buy only Wolf3d.