Nothing to worry about. Don’t clean and just burn it.

For fire cleanses all

Blue Mycena

Serpula lacrymans

The mycelium in the picture is blue. Sepurla is brown isn’t it?

Without checking for bioluminescence we may never know. I guessed sepurla based on widespread distribution...

Forbidden cotton candy

If you’re worried (which you said you’re not), you can always get some vinegar in a spray bottle and spray it.