I would try to dig out all the grasses from the
root zones. Grasses compete with the
roots of young fruit trees and bushes for
water and nutrients. Other plants you'll want to dig out would include any noxious weeds that are invasive- stuff like creeping buttercup, Himalayan blackberry, poison oak/ivy, kudzu, gorse, etc. Keep adding clean woodchips to choke out the bad weeds and grass.
Comfrey, on the other hand, is an excellent "weed" to have and many folks like this one in their orchards. I like wildflowers such as iris, tiger lily and fawn lily in my food forest. Legumes such as clover, vetch, favas, sweet peas, lupine, etc. are excellent too. Bee balm is great for the
bees and hummingbirds.
Mushrooms like winecaps (king stropharia) are excellent additions to your wood chips and convert them to rich soil. Mycorrhizal mushrooms such as dye-makers false puffball and morels are great companions for fruit trees, too. Check out this
thread about
apple tree guilds:
https://permies.com/t/238745/grow-apple-trees
Good luck with your food forest!