We need a language to read a book, and that affects our thought process, as we start thinking like the author and behave in a manner we perceive from the books. Like how someone speaks under the influence of alcohol, books n authors too influence.
Sawdust that is created from cutting natural wood is safe for your compost no matter what kind of tree the wood comes from. Just make sure the wood has not been treated with any chemicals. Another option with sawdust is to try mixing it in with potting soil.
If it is to be used for animal bedding, it needs to be coarse, without a lot of fine dust. Chips from jointers and planers are good, but sanding dust is just as bad for horses as it is for us. Unless it's full of chemicals, compost it. I've heard that there are some wood's sawdust that is rather bad for the horses.