Wow, that link is something I wish I had when I was starting out 6 or so years ago. Reading through it with my partner right now, it does a great job of succinctly but comprehensively consolidating so many things that we had to pick up in bits and pieces over time.
Just finished reading through it together, what an excellent resource. I especially liked and appreciated the explanations of gender euphoria and how it relates to gender dysphoria, one of the most thoughtful and clear articulations I've seen.