I assume this is mostly for windows? All Linux and I assume Mac has openjdk available in the repos. The openjdk project itself also hosts binaries for *Nix
It can be helpful to just pull binaries from AdoptOpenJDK when you know you want a very specific version.
System packages shift around minor versions which is fine 99% of the time (given Java's compatibility especially). I've occasionally needed to work around a bug in a specific version.
