@sgunhouse LMAO the Overlay Scrollbar 'feature' in Opera is abysmal. It's unusable. It was like that since implementation.
Turn it on in Chrome and use it... Then turn it on Opera and try it...
It's an experimental feature that Chrome has got working flawlessly... Meanwhile, Opera... I've kept my eye on it since O50 and there's been no change.
It's been reported more than once.