Virtual Desktops rock and you should read <a href="https://blogs.windows.com/bloggingwindows/2014/10/03/keyboard-shortcuts-in-the-windows-10-technical-preview/" target="_blank">this list of new shortcuts</a> before complaining that there are none, like I did. Important ones:
* <b>WIN + TAB</b>, new task view opens up and stays open.
* <b>WIN + CTRL + D</b>, create new virtual desktop.
* <b>WIN + CTRL + F4</b>, close current virtual desktop.
* <b>WIN + CTRL + LEFT/RIGHT</b>, switch virtual desktop.
Unfortunately, the new start menu doesn't really rock. I suggest you have a look at my suggestion about the <a href="https://windows.uservoice.com/forums/265757-windows-feature-suggestions/suggestions/9252939-search-everywhere-interface" target="_blank">Search Everywhere Interface</a> and maybe vote on it.