Hello AdrainRose,

The version I'm using is through an RDP connection - so although I have to be online to use QB, it is not actually the "Online Version".   That said, although an Advanced Search function may be useful on rare occasions,  it is a waste of screen space to have it there all the time.
Thankfully, you are wrong about being unable to remove or hide it.  I suspect that you have never used QB outside of a training activity and your response was from a help/support script.     As usual, the truly experienced (and equally frustrated) community of QB users have come to the rescue once again in providing a fix to this  annoying "upgrade" feature.    If only QB would use its resource to address the many other problems with the user interface instead of coming out with unwanted new features. *SIGH*