In my experience this hasn't been true of (some distributions of) Linux in several years. I've talked to a lot of people who hold this opinion and they generally haven't tried Linux in 5+ years.
I think for the general case yes, but there are still some rough spots on certain hardware (e.g. power management on macbook pros and so on).
Some other smaller things, like attaching an apple keyboard to ubuntu creates up with pretty weird mappings for a couple of keys. Configuring the keyboard under those conditions is pretty confusing.