> The integration with the Language Server Protocol is created as an extension to the commercial IntelliJ-based IDEs. Therefore, plugins using Language Server integration are not available in JetBrains products like IntelliJ IDEA Community Edition and Android Studio from Google.
b) I thought IntelliJ code analysis is so much more superior? If you’re using LSP, what’s the point of IntelliJ anyway? Sluggish ui?
It's so that you can do the "all languages in one IDE" thing you just described by using the LSP for languages IntelliJ Ultimate doesn't support. The experience will be more or less identical to VSCode for LSP languages, but for those supported by IntelliJ, it'll be better.