I'm sure I still don't know them all! I just learn them as I need to. Like "how to revert a commit Jetbrains" or "Jetbrains query postgres" or "copilot for Jetbrains", etc.

Really 95% of the time I'm just using the code editor, intellisense, and search everywhere (shift shift shift). I'm glad the other features are there but it's totally fine to slowly discover them.

I think by default it also launches with a tip of the day feature, which you can manually browse through to see many of the tricks.