Is this a ganoderma oregonense or tsugae or something else?

While I was cleaning the garden behind the house, I saw a mushroom growing on a coconut tree trunk. Coconut tree that has been cut down several years ago and only the base is left behind.

This mushroom looks clean and attractive, so I immediately took my smartphone to take some pictures of mushrooms to share on the Fungi Lovers Community.

I have tried to find out the classification of this mushroom on the internet, but I could not find accurate information, maybe I missed it.

If there is information about the classification of this fungus, please comment in the column below. Thank you, really appreciate it.