

Not exactly. While the images you send them are usually about 300-600 dpi, the halftoning is rarely done at 600 or less.
At 600 dpi, AM halftone dots are painfully visible, and even FM halftones can be distracting and lead to a defect usually called “color noise”.

Nice to see nim mentioned. Quite like it as in principle but I thought it was on life support.