It should be possible to hide those elements via IOL technique or similar.
As an example if you open up QuickBase and in Chrome hit f12 and go to the console and enter this next line, you will see the My Apps part disappear. You would use IOL to do this on every page a user interacts with, if you wanted it gone.
$("#myQuickBaseLink").hide()
A native solution would be better but seeing as this has been asked about for 5+ years that probably isn't coming. If the button is going to be that big of an issue consider hiding it like above.