Thanks, Pete!
My observation is similar to yours, I try to keep the soil line the same throughout the fig’s life if I want to maintain a single stem tree.
Your seedling looks beautiful! Those are the first season leaves, I believe that starting from the seconds year, the leaves would look slightly different.
Although, comparing the leaves from seedlings of Panachee, Unk. Pastiliere, 184-15, Black Mission, Unk. Union Berry, VdB, you can tell they are different. They remind me their parent’s leaves.