After eating 14 oz rib eye i was constipated the next day; pellets. second day had flat-ish stools. then i increased fiber intake and had round-ish and oval stool that are smooth / no issue coming out. is it an issue stool is not an exact circle?

It is fine, stool can come in all shapes and sizes. But what this does point out is that you regularly need to eat enough fiber to not become constipated. Steak can be very consitpating especially if not eaten with sufficient fluid intake, vegetables, fruit and other fiber foods. Apples and popcorn are very good fiber and can help with and prevent constipation.