As a counterpoint, for a project of decently large size on my 2019 MBP, IntelliJ is snappy and a delight to work with, while Xcode takes up 30 GB of space, takes minutes to boot up, and gives me syntax highlighting and autocompletion about as reliably as a broken clock tells time.
Xcode opens in seconds for me, and my projects are massive. Sure, it can be slow to do certain things, but its startup time is generally ahead of every Java-based IDE I have every used.
