Comment by mrudolph22

Refactorings are one example where LSP can’t match IntelliJ. A language server also takes far more skill and effort to implement than the equivalent IntelliJ plugin, where much of the heavy lifting is done by the IntelliJ framework. And you still need at least a lightweight plugin for each supported editor. That’s why a language server isn’t necessarily the best place to start but hard to avoid in the long run.