No – we have overwhelming evidence that it is round, and no evidence that it is flat. There are lots of ways to prove it’s round – one way is that the star constellations are different when viewed from the northern compared to the southern hemisphere – this can only be explained by the earth being round.
100% round. There is so much evidence it is round (like the moon and Sun and all the other planets). Even if you don’t believe any of the photographs taken from space. Another example in addition to what Alexandra has said is Lunar eclipses which show the shadow of the Earth projected onto the Moon from the Sun. It is a rounded shadow not a flat one!