I had Ubuntu running on our main home computer for more than a year. There were definitely some annoyances, but things were tolerable. Until I upgraded Ubuntu (I forget which version) and sound was broken hard - I spent hours fixing it, but got calls from home every few days asking me to "help fix the sound. it's broken again". Finally, I gave up and switched back to Windows.
It works and docs find it helpful. I'm amazed that it's ignored in TFA.
Docs won't use EMRs until they need to do so to get paid. That's the long and the short of it.