I can see for myself the moon and Jupiter are globes.

I have a moderately powerful amateur telescope and when the earth is near Jupiter I can see it for myself and it's obviously a globe with moons orbiting and bands rotating. Our Moon is very clearly a globe. Saturn too. The other planets are too small to clearly discern.

Is the Earth the only flat planet? Not looking for an argument. Just wanting to understand how the FE model(s) deals with this.