Going in a different direction, if you're interested in a fantasy book that explores the concept of life as a tree then check out Tree of Aeons by Spaizzzer. It

Going in a different direction, if you're interested in a fantasy book that explores the concept of life as a tree then check out Tree of Aeons by Spaizzzer. It's an isekai where a guy is reincarnated as a magical tree. Admittedly, the book series dropped off a bit for my taste after the first book, but it was still a creative take on the genre.