I know I've probably just been living under a rock, but I can't seem to unlock uthassum rhamoezz in any way. I got the community challenge add on just fine, but I haven't gotten the hero. I have a G2G account linked with my steam account, and I subscribed to the Endless space newsletter by making my account. My email is empty (including spam) and there's no gift icon on the G2G website. I have the profiler badge, and I've heard you can unlock it with that, but I don't know how. Any help would be much appreciated so I can own 100% of the Endless space 2 content. TY!

In your game or steam you can check if you have him as additional content. If you do have him, then he is just not activated, other wise you should search for a topic on forums there were people having same issues and dev replied with a fix in that thread.

Adapt the instructions you find this place to get Uthassum Rhamoezz unlocked: Community Challenge Pack Not Activating

Got it, thanks for the help