Does IntelliJ Ultimate include their C# functionality from Rider, as well? I used to use IntelliJ Ultimate, but I don't remember it including C# support.
I guess AppCode and Rider aren't included. As a Linux user I completely forgot they existed :).
No, you have to use Rider for that. That said Rider is fantastic and their Unity support is top notch. Going between Rider for game code and IntelliJ for the backend was a godsend when it happened. Makes my day to day workload manageable.