Do long-haired cats shed more hair than short-haired cats?

The suit is the same.  In fact, some short-haired cats shed just as much as long-haired cats.  Also, some long-haired cats shed less than others short-haired.
Brushing the cat is the first and most important weapon available.
It is possible not only to avoid the formation of knots, but also to remove the dead hair and consequently reduce the amount of hair in the house and avoiding the formation of hairballs in the intestine of the cat.