I live in North Texas and found these growing on hardwood logs in my backyard. It looks a lot like an albino Reishi, or a G. curtissii. I looked all over the internet and the best thing I can conclude is that it's some sort of Ganoderma probably, but I cant find anything except one youtuber from 5 years ago that is showing anything similar. G. Lucidum and others are white when young but these are pure white and seem to be fully grown. ID help please?! If its what I think I'm going to do my best to sample and cultivate!
More photos including close ups of the polypore surface here: Imgur: https://imgur.com/gallery/MPIO3TW