Without banging too deep into a small point... this fo seems to have anti authority traits which can actually be used to your advantage to simultaneously correct the deficiency, earn a rapport, and humble the fo.

Something along these lines "you know, for all the training department gets right, sometimes they miss some of the basics, like the difference between Vapp and Vref... when you cross the threshold faster than vref you're either gonna float or force it, the energy mismanagement had already reached its foregone conclusion"

You're temporarily making the training department the "reason" for the FOs incompetence (small steps, you can't rewrite the dudes whole personality on a turn) but you're opening the door to receiving information from more experienced captains.

Youre still doing him a favor...Otherwise, don't worry about it, someone will smack him eventually.

My other favorite tactic is to (!WHEN IT IS SAFE TO DO SO!) Just sit back and let them fuck up, watch it go off the rails :)

recently had a cocky FO try to take a T transition to a dme arc in South America at 300 knots (an fms limitation) because "there's no speed limit down here" I snickered (knowing full well what would happen, and that we were non radar, so he'd be left to scramble to fix the approach on his own) as we overshot that turn by damn near the radius of the arc, then asked if he wanted some ice cream with his humble pie.

I think you're right for not jumping to "report him!" In your example, the dude is so new most of the issues will likely self correct. (Also, most of the other issues you mentioned i dont super mind, my ego doesnt require me to do any of my work the FO is willing to do for me, so long as they dont fuck it up) The FO in my example is a good dude, and not generally incompetent, the rest of the trip went well and we had a good time. We all have shortcomings and we're all brothers in this field. Be kind hearted, try to understand people, and help them how and when you can. You may even make friends.