Freezing uncooked ‘chicken of the woods’
Welcome Paulette! Your mushrooms should be fine for using in cooked dishes. I would avoid using them uncooked as thawed mushrooms can be soggy/mushy.

We don't have access to any areas to forage fresh mushrooms, but I have bought both fresh (and frozen them) and prepackaged frozen mushrooms. When used in cooked dishes you couldn't tell that they weren't fresh to begin with. Much, much better than anything from a jar or can!