If you're not familiar with the JVM, I think this is a big ask for most people as far as ease is concerned. I have created a template on my github to use clojurescript with your typical NPM setup that would allow you to get started right away. I know of no equivalent in the JVM world mostly because of how tightly Oracle controls the download experience of the JDK.
No, you should almost certainly be using openjdk, which oracle jdk is based off, unless you have a compelling reason an alternative implementation is better.
OpenJDK releases become unmaintained as soon as a new release comes out, not ideal for anyone who cares about stability. Zulu and Corretto backport bug and security fixes to supported releases.
