depends where you are in the game. Both of those are more advanced materials that’ll become more common as the game progresses. I don’t thing End of Content has everything grindable yet, iirc how I set it up. It’s meant as a way to storygate some of the progression on craftables and furniture. Or at least make earlier game choices on those more substantial at that time. It’s one of those things I imagine will feel better come having a full game
Happy to hear you’re enjoying it!