I rarely bath my dogs. A good, regular grooming routine will keep their coats clean and reduce shedding and odour. If you wash them regularly they lose the natural oils in their coats that protect them from rain/water and maintain natural skin flora.
Obviously if they roll in something disgusting you don’t have a choice, but I wouldn’t do regular baths.
Many, many, many years ago I had a little Whippet cross who loved to roll in the most disgusting thing she could find and actively resisted being bathed. I had to put on old leggings get into the bath with her, hold on tight and clamp her between my knees so dh could wash her! It was like trying to contain a very wriggly dog-shaped eel!
Thankfully there are now things like
I haven’t had the same problem with any of our dogs since, because I learned about using positive association and desensitisation, so I got them to associate nice things with being in the bathroom, then the bath then while a little water was put on them, etc, before ever attempting to actually bath them properly.
For the last few years my big dogs had their baths in a giant plant-pot (the type used to plant mature trees, so massive) in the garden with the hose attached to a mixer tap for warm water though.