Minimum window height in Visor mode?

I use Finder (in general) almost always in List mode. I’ve noticed in List, Icon, and Cover Flow mode, unless the Visor is around 360px tall I can’t see the Share Screen and Connect As buttons. Is that expected behavior? The top of the visor (Tabs, Nav, etc) keeps sliding down if you move it, but the content in the window stops scrolling.

Just curious!