My React-Learning Journey is a rather very old post (almost 2 years) and a lot has changed and evolved since then, but it might still be relevant, especially since some of the links provided in there have been kept up to date.
I also commend you for your willingness into formally investing time into learning the “arguably” harder option, if anything you will have gained a good sense of proper architectures and code structuring which you can still translate to other frameworks and libraries.