VS Code: Debug adapter more reliable; inspect large terms with #inspect . However, initial launch configuration ( launch.json ) is more manual.
In VS Code: Manually search-replace, or use LSP rename (which often misses references in umbrella children due to path misconfiguration). Risk of broken code. jetbrains elixir
Phoenix LiveView (real-time HTML) is better supported in VS Code due to Tailwind CSS, HTML, and HEEx template tooling. JetBrains handles .heex but with less polish. VS Code: Debug adapter more reliable; inspect large