Eitot: I would like to transfer my save files from Steam to GOG. I wonder if this change could make it possible at some point?
It's super simple to do, no need to wait... you just go to:
C:\Users\yourusername\AppData\Roaming\HelloGames\NMS
If you've played on both Steam and GOG, you'll have a couple folders inside that folder:
1. DefaultUser (this is your GOG save)
2. st_00000000000 (a random sequence of numbers based on your Steam account)
All you have to do is copy the stuff inside the st_000... folder into the DefaultUser folder and your Steam save is now ready for the GOG version
Important note... disable Cloud Saves in Galaxy before you launch the game because Galaxy may try and overwrite the files you just copied... so disable Cloud Saves, launch and play the game and then you can re-enable Cloud Saves and Galaxy should start putting the new ones in the Cloud