Is the way of eating typical for mushrooms? Ways to deal with tinder fungus? Does the fungus get from the algae in the lichen?

Is the way of eating typical for mushrooms? Ways to deal with tinder fungus? Does the fungus get from the algae in the lichen? Signs typical for mucor? Lichens are called air cleanliness indicators because they are?

Mushrooms, by the way they are fed, can be both saprophytes and parasites.
Polypores are parasitic fungi that act as a wildlife orderly. (They destroy weak trees). To get rid of such nurses, you need to burn this problem at the epicenter along with the diseased tree.
Lichens are called an indicator of air purity, as they are sensitive to contaminated vapors and quickly die if there are large numbers of them.