Always Has Been

https://www.scientificamerican.com/article/earth-is-not-round/

If the definition of round is spherical, it is likely that no object is round because most (?all) objects have imperfections.

The earth bulges at the equator due to the planet spinning. It isn't about imperfections, but the lack of the round shape.

The difference between the polar diameter and the equatorial diameter is 26 miles or ~0.3% which is imperceptible to the human eye and close enough to spherical to be called round. But that is just my opinion.

Incidentally, when reading various definitions of the word "round" I found that round can also mean cylindrical. So if the disk earth model is defined as a cylinder that is short and very broad, the flat earth theory is technically a round earth theory.

Technically correct is the best kind of correct.

Awesome!