Mix time is inextricably tied to flour and formula. The amount of development you want on the front end depends on the flour specifications, fermentation schedule, and hydration. An example:
Caputo Pizzeria 00
Fermentation time: 18 hours room temp
Mix time here would be 2-3 minutes on low in a planetary home mixer, with a 20 minute autolyse after initial incorporation. A stretch and fold would be used after 1 hour fermentation.
King Arthur Bread Flour
Fermentation: 8 hours
Mix time here would be 4 minutes on low, 20 minute rest, 4-8 minutes on medium high until the dough pulled away from the sides.