Yeah, I know about these issues and I plan to work on them in the post jam version of the game... The UI had me pulling my hair out, since I was struggling with it the whole time making the game, so I just left it there for the sake of the game jam. As for the grabbing the stuff mechanic, I aslo struggled to teach the player how to do this. I'll try to add more of hand-holdy guide in the post jam version (especially in the first level), since I think it doesn't take much to learn it, but you have to know what to look for.
Thanks so much for playing the game and giving me the feedback! It really helps a lot <3