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Well, two Java features of modern toolchains (previously only available in 3rd party commercial JDKs) would be to take advantage of native images and JIT caches between runs.

Then there are the possible uses of G1 and Shenandoah.

This just in the context of OpenJDK, other implementations have their own JIT, AOT and GC variations to choose from.

So running on latest versions of a JDK already helps.

Me personally, I am happier using Eclipse and Netbeans anyway.

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Doesn’t IntelliJ use its own bundled JRE? If that’s the case, it won’t matter which JRE you have installed.

JRE are gone as of Java 9 actually, replaced by application custom images produced via jlink.

You can still get JRE, but they aren't as official as they used to be until Java 8.

And in any case, customization flags for which GC to use, or JIT caches, are part of any Java runtime implementation.

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