In what way?

When I used Rider at my last job, it would pick good auto defaults that you could customize based on the project configuration, including automatically generating IIS express configuration values.

Are there more explicit downsides you can mention?

Comparison of what exactly?

JetBrains' IDEs have built-in update managers. They present you each plugin, giving you a tick-box of which ones to update. The Toolbox app manages the IDEs, allowing to update automatically or not, install pre-releases, and roll back. It's polished.

The IDEs use the established desktop UI norms of toolbar menus.

They come with pre-defined 'Run' templates for many languages/frameworks.

There is a single Event Log for output of updates etc.

The left menu has words so I know what the icons mean, and isn't obnoxiously large due to over-use of large icons.

I agree its good for a single framework. But the amount of features/ui for things I'll only use once on a blue moon is too high. I'll take config files and shell commands over multiple layers of buttons and menus any day of the week.