@ryan40730 if you are still interested, there’s this user named David from SKmedia who happens 2 be a Corvid Master and if you visit his site at skeptischmedia.com you’ll notice (UPDATE: well heck now there’s nothing, empty domain l:" but there was, trust me) he managed to change his main scrollbar (by styling it) and even hide it in his tutorial subpages. He’s the only one i’ve seen who has managed to do so but has given no further info about it, nor there is any other answer in the whole Corvid forum (trust me i already looked for it) or Reddit forums about Wix.
Perhaps you could e-mail David (the Corvid Master) and ask him directly about it.
Overflow in Wix is… quite a headache so : i understand your frustration. Tho i once read someone from the Team commenting that they’d work soon on it.