Does IntelliJ try to complete the word you are typing, or does it suggest an entire line of code? Because newer versions of IntelliJ incorporate LLM's to beef up autocomplete. You may already be using it.
The "dumb" autogenerated stuff is incredible. It's like going from bad autocomplete to Intellisense all over again.
The world of python tooling (at least as used by my former coworkers) put my expectations in the toilet.