Mm, yes. Your answers all kind of align with the conclusions I'd come to about my Fi friends.
They always struck me as differently proactive and decisive about what they wanted to do —*especially if it was just something for fun. My friend used to do a lot of hands-on things like paint her table purple. I don't even think it mattered whether or not she thought it was a good idea. It was almost as though the doing was more important than the product…presumably because the doing entertained her?
In contrast, my T friends often can't be bothered to do much unless they can see the point first. Always feels like they have to be a bit more invested before they can make a start.