Ableton is great and paved the way for a more creative and intuitive workflow! I switched from Cubase very early on and never looked back. That is, until I found Bitwig ( https://www.bitwig.com ) which supports Linux! They also deserve a shout out taking it even further!
Bitwig looks really promising. But how is the VST landscape? Is it even supported? EDIT: sorry, my question was about whether Linux supports VST. I would assume that Bitwig did at v0.1 :-)
I found it a pain to set up in the first place, and it's hit-and-miss which plugins work in it, but once up and running it actually works smoothly enough, in my experience. (Larger, more complicated VSTs seem correspondingly less likely to work. Of ones that don't immediately work, some can be massaged into working with some tweaking of your wine setup. There's a webpage somewhere with a list of what plugins are known to work and what you need to do to get them to work.)
There are other ways of running windows-based VSTs, but that's the one I'm familiar with.