No but you can just use ./mvnw instead of installing it. I have never had to install gradle as a package on my computer in my entire lifetime. I always used ./gradlew.

It's an additional install, like the jdk. Typically on a brand new os install the equivalent of these steps would be done:

    sudo apt-get install <jdk>  
    sudo apt-get install maven

And then you'll be good to go.

I develop on a Windows machine so you're left working out which version of which JDK you need to install.

That isn't really a problem with other languages.