My Bernedoodles haircuts question

I have a dog grooming question. Is there a special way to groom Bernedoodles to keep their coat healthy and tangle-free? Also, I know there are unique doggie haircuts based on the breed. Is there a specific Bernedoodle haircut? These two beauties are shaved every 6 weeks, but I'm not sure that I'm asking my groomer for the right haircuts. My groomer is Primped Pooches in McKinney. Does anyone have examples of bernedoodle haircut guides?