In my opinion, doing all the research that you are doing is great, and absolutely necessary, but there is nothing like experience. Here's the thing that I have learned, you're going to buy a camera, and it's not going to be perfect, regardless of the one you choose. You'll learn a ton from your experience with that camera, but then you'll want to upgrade and so you'll buy another one, and it won't be perfect either. So, you'll upgrade again eventually, and so on and so forth. Until eventually you realize that investing in cameras is like pouring money down the toilet. So you'll begin investing in lenses and tripods and mics and other things that don't lose value so quickly. But your tastes will change regarding those things, so then you'll eventually replace that gear with other gear, until one day you realize all that stuff doesn't really matter because it's all about story.
Along the way you'll waste tons of money and time, but unfortunately there's no way to skip from A to Z. The journey is very important and unavoidable, and fun. Just be prepared for the world you're about to enter, and jump in with both feet. You're gonna make mistakes and there's no perfect anything. At least that's been my experience.