What application are you trying to do this with?

Any application which supports the combine mode like explorer, notepad etc shouldn't have a problem with the snap windows feature in Windows.

Those which have custom titlebars and so require tabs to exist above the titlebar may have issues with the maximized option as the OS realises the windows are not at the very top of the screen and so will not engage the fullscreen mode, but instead tries to put it back to the top corner where the window already is.