Hey,
I've been using KRDC for some time now, and I've found when I'm in my remote session full screen, I'd like alt+tab to be forwarded to the session, as opposed to cycling through my local windows. Is it possible to forward this?

You need to add a KWin rule to exclude KRDC from Global Shortcuts. Please see viewtopic.php?f=111&t=96500&p=202655