I believe the jump is just a jump/dodge from what I can tell. Don't worry, I don't think you ignored anything, I'm also super new and I'm pretty sure there wasn't a combat tutorial. You figured out everything else pretty much though!
Yeah by the time I got a reply I figured out the blue bar, the digipedia explanation of the attacks wasn't. Helpful? Not really? It just tells me what does what damage. Well. The icons did that.
Otherwise, I kinda hope the jump button is replaced by a proper dodge, I frames and whatnot cause uh, it's really not been super duper helpful. Feels like the AI always knows when I'm gonna do it and acts accordingly.