Remember! JDK versions will be named in the same format. So JDK 11 would be named as java-11-openjdk and so on. So if you want to install other versions of the JDK you follow the same format. Its easy, isn't it? :D
If you want to install graalvm JDK, look here. Make sure to select the latesst Java version along with Linux x64 for the platform.
After hitting the Download buttong you can unzip the zip that downloads by double clicking on it by opening Files.
You can then add it to your launcher by pointing to the binary in bin/java.