I feel like the flows are the way to go. I’m also not a complete beginner but starting over with the Introduction to Blender Flow has taught me a few things I didn’t know despite feeling I was a little past those steps in my learning. It’s a different approach to the usual ‘here’s how to make this thing’ style tutorials and I feel like it’s better providing me the tools and knowledge to make my own creations more easily.
I will say one thing, there’s a lot of stuff to work through that will have you watching and listening and taking information on board rather than following along and actually interacting with the program. At least as far as what I’ve gotten stuck into so far.
There are exercises that have you get your teeth into Blender but otherwise it’s probably easy to allow yourself to sit back and listen. Don’t do just that. Make sure you put some time into the exercises and challenge yourself to work through them relying on your memory of the previous content rather than following along with solutions. Pushing vertexes around and actually having to be aware of the decisions you’re making feels a lot more valuable to me than following someone step by step as they say “do this because this”. Take them as challenges and look at the solutions only if you get stuck or after you’ve finished to see how you could have maybe done it differently.
Good luck, and have fun.