Setting up a system for audio is difficult regardless of the operation system used.
Any really big artist will just walk into a recording studio and focus on making music. So: If the studio uses FOSS, the artist will, if not, he/she won't.
I switched to linux because I was using linux anyway (for my everyday job). So linux was installed on my notebook. I wanted to have a good piano-sound in my band, so I installed pianoteq and used it.
I had a nice windows-7 based system for music (cubase 7 or so, sibelius) which stopped working sometime (killed itself after an update, typical windows problem).
I then bought a win10-computer. Here: no drivers for m-audio-delta 1010LT. No drivers for m-audio fasttrack pro. Also, I found that the old machine (which killed itself on windows 7) forks quite nicely with linux still (even though there is a hardware-problem sometimes when turning off the machine). That's what I mean by "it's difficult with all systems". The difficulties lie on other spots, that's it. Some things are MUCH easier with linux, some not.
The really big disadvantage of linux in this area is the lacking support for commercial plugins. I appreciate all the work put into wine and such, but that's not the real thing, to be honest.
If someone puts a lot of work into something, there must be a way to earn money from it. In some areas, this is well possible with FOSS. So, for instance, google pays developers to work on the linux kernel, they are running their servers on it and make billions of dollars with it. Really very commercial, but still FOSS. And, quite nicely: All big players in the internet-world work on the linux kernel (google, amazon, microsoft) and there is profit for everyone.
But what if a small company does a really cool sampled instrument which took a whole lot of work and money (rent a recording studio, record it, pay the artists, and so on), how would that work with an open license?
Sorry, I am getting off-topic here. There is other work I should do, that is probably the reason
