My breeder told me not to bathe the dogs before they are 6 months. On YT I have met tons of people who bathe their dogs MUCH earlier and therefore I tried to bathe my youngest at 12 weeks - and she lived through it
Now I give my dogs a bath once a month and brush them while their hair is still wet.
And they get an extra bath if there's a special occasion, like christmas, visitors from far away or going to the vets