It's not driver support for audio stuff. Drivers are great; haven't had any issues at all. The UI for the software, especially DAWs, is just plain garbage. It shouldn't be this bad; I'm halfway tempted to start my own project to put together a fork of one of these DAWs with a UX that doesn't suck.

Technically a lot of stuff for linux audio is amazing; it just lacks the level of polish to enable someone to actually just use it out of the box.