I wonder when this started, I was under the impression that Ultimate had it all, but maybe that was either never true, or only when I last had to petition for the team to get it (10 years ago). Not even sure either Rider or CLion did exist back then.
For Rider, it's because they built ReSharper (a Visual Studio extension) before Rider, and then built Rider to make it use ReSharper as a back end without Visual Studio, while still using the IntelliJ platform.
