Yes. For example, if you're working with audio, you'll want a realtime kernel, and an audio subsystem configured for that use case over a default desktop distro.
Running a realtime kernel on a desktop can be slower, and a desktop Pulseaudio setup isn't going to be enough for someone working with audio, they'll probably want Jack, too.
Running a realtime kernel on a desktop can be slower, and a desktop Pulseaudio setup isn't going to be enough for someone working with audio, they'll probably want Jack, too.