Good day,
I am playing on Linux via Lutris.
I have experimented with Wine 9, Wine-ge-8-26, and Lutris 7.2-2. The issues persist through all of them.

When I install the GOG version I always use Loader.exe to run the game.
If I select 'Vampire' then everything works fine
If I select 'Unofficial_Patch' then I do not have fists in my inventory.

I solved the issue by typing '-console' in the 'Arguments' line in Lutris, and then using 'give item_w_fists' to equip fists.

When I install the Clan Quest Mod the same problem happens, however the console does not work in any version of the game. Whether I select 'Vampire' or 'Unofficial_Patch' or 'CQM' from the Loader popup window, none of them have the console even though I have '-console' typed in the 'Arguments' line.

Reinstalling does not fix it.
Running the base game before installing the mod does not fix it.

There was also another bug, but it appears to have been fixed after reinstall:
when running CQM the vampire powers do not activate, though they work fine when running 'Vampire' or 'Unofficial_Patch'.
(so far this bug has not returned)

If you can help me to figure out how to get the console to activate after installing the Clan Quest Mod I would appreciate it. Also, if you have any other advice on how to fix the problems I would appreciate it.

EDIT: I Forgot to mention, widescreen also ceases to function through Loader after installing the Clan Quest Mod. I can activate it in the options menu when running CQM, but for 'Vampire' and 'Unofficial_Patch' the aspect ratio now becomes 4:3 without any method of changing it.

I don't use Linux so take my comments with a grain of salt. The no fists issue should have been caught by the patch using a Python script so I suspect that Python somehow is not working on your system. People on the Steam board often talk about using Proton on Linux, whatever that is. I have no idea why the console wouldn't work either, have you tried to open it from the main menu only? Even under Windows it freezes the game when opened during gameplay.

Yes, it warns about the Python script when you run the game in Linux without Loader.exe.
I ran the game with Proton via Steam but the problems persist and the console still does not work for CQM when typing '-console' in Steam.