IntelliJ and VSCode have both worked pretty well with anything I've thrown at them, I'd consider them both fairly successful as IDEs "to rule them all". Obvious

IntelliJ and VSCode have both worked pretty well with anything I've thrown at them, I'd consider them both fairly successful as IDEs "to rule them all". Obviously they're both very different ends of the IDE spectrum, but they've both had intellisense, debugging, type revealing, and refactoring features for all the mainstream languages I've tried with them. VSCode particularly tends to integrate well with LSPs.