> More serious music applications

I don't understand this perspective. I've seen musicians at all levels use all sorts of crazy instruments. The output of live audio processing may not be used in the final result, but it's very important for capturing a performance.

> not sure they are commonly used on linux or if it's wise running with low resources

Linux-based studios are the norm for many hobbyists and in educational settings where the goal is actually teaching and not just indoctrinating a new cohort of commercial software users. Also, who said anything about "low resources" and what does that even mean?