Since the GOG version does not support Twitch Drops here is how you can add the Drops via console:

1. Create a shortcut or use the launch arguments in Galaxy.
2. Add `-devmode` at the end of the shortcut or as a launch argument.
3. Load a save and press ~ to open the console.
4. Paste these codes in (You can copy/paste max 4 at a time):

```
wh_cheat_addItem 1ffc3ad5-4d06-4dfb-b384-bcd45edf37f3
wh_cheat_addItem 5eede8e8-686b-4587-85c2-a548d574aaa6
wh_cheat_addItem 660a39ee-f440-4dd4-a412-4b89d1bad7f5
wh_cheat_addItem 71ac5966-90bf-4406-bba9-6c75f81ac20f
wh_cheat_addItem 90c3b622-1c1d-4bd1-bee7-6b1c04072c5c
wh_cheat_addItem 80cb6275-db4a-46a1-91d3-f24a5f4dfe88
wh_cheat_addItem 86eb09e2-7dcb-4c46-a357-a70c3749ba33
wh_cheat_addItem 9403ad41-7eea-451b-836f-32ba034ef3bb
wh_cheat_addItem 954afcac-c0ab-41ce-9e37-6a7fb4e55b1e
wh_cheat_addItem bfc06521-05ed-44cb-a022-88be09a2dca7
wh_cheat_addItem d172564b-6b94-4df5-93df-84093a657f42
wh_cheat_addItem dacee2bf-6394-47b8-b7b7-175cd9a60b94
wh_cheat_addItem ef7d8509-667b-4d7f-920c-b22fcf646e18
wh_cheat_addItem f2813ad4-32ed-4bdd-920c-2ca7fbec4e7a
wh_cheat_addItem fc60850a-a266-421c-be69-6839787f56cd
```
5. Save the game.
6. Optionally remove the launch arg/shortcut.

I've yet to test if this affects achievements due to having issues with Galaxy rn, some steam users are saying it doesn't.

Funny thing that when I tried to paste them one by one they didn't work. But when I pasted 4 like you suggested it worked just fine. Thanks.