That's true, although, if you look at them, you wouldn't notice. The only mention of JVM you can see in the IDEs is in the About dialog, and the IDEs install and run their own OpenJDK, so no JVM has to be installed globally. Almost as if they were a bit self-conscious about using such an "unsexy" architecture...
You mean a JRE, because the whole JDK contains a bunch of things you're never going to need.
Mind you, a default JRE redistribution makes your app at least 100+MB. Using jdeps to strip out unneeded things is a good idea if you want it to get down to 25 ish MBs.
Yeah, saying JRE is a bit of a shortcut since you're supposed to jlink & jpackage & jdance &jpray to get a slimmed down JVM released with your app, but it's closer to what would be a JRE than a full JDK