Little update:

Moved the enclosure about a couple feet sideways from the TV and placed a table with shelves between them. He didn't seemed bothered from it in the first place but I did it anyway just to be on the safe side. Also hot glued the probe wires in key locations and they've finally stopped being jostled around so that's nice.

Meanwhile however, I'm continually struggling with humidity (40% on average), especially lately with the onset of autumn, but I leave a humidity box in his enclosure at all times and do mistings to do what I can. Still lowkey dreading his first shed though.

Also I've noticed he has a tiny vertical scratch line on his belly scales. Not really sure where he got it since I made absolutely certain there was nothing dangerous in his home, but the scratch is so small (you have to put it right in front of your face to notice it whatsoever) and he looks perfectly fine otherwise so I don't think it's anything serious. Would've gotten a pic but I forgot to do it before I fed him today and I obviously don't want to disturb him.

Speaking of, Zebes has been doing fantastically on that front. My boy is a tenacious eater and seems to know when feeding day is now. In this instance I saw him poke his head out of his hide and flick his tongue excitedly before I even got the tank screen off. I've also done tap training of sorts and give a couple gentle taps on his hide with my finger whenever I bring him out to handle so he knows my intentions. Has never even tried to bite me and has gotten more and more relaxed in my hands, he's such a sweetie.