When I used IntelliJ, for the languages it understood best (then Java and Kotlin), it felt very little like editing text. The sense was much more like interacting directly with an AST. I rarely had to use standard 'text' editing features (oriented around word/sentence/para entities). This was an emergent affordance from all the many language-oriented facilities (all available via keyboard shortcuts) offered, rather than one specific feature.

I actually don't use IntelliJ now for reasons not germane here. I'm on neovim, mostly with Rust and javascript/typescript). This is great in many ways but the ergonomics of editing, even with LSP integration, are much more like editing text, which is more distant from my mental model of the code.