This a feature targeting developers or perhaps apps running on end-user machine where page cache sharing between applications or container does not typically ge

This a feature targeting developers or perhaps apps running on end-user machine where page cache sharing between applications or container does not typically get much of RAM saving. Linux kernel overhead itself while non-trivial is still very manageable in those settings. AWS Nitro stripped down VM kernel is about 40 MB, I suppose for Apple solution it will be similar.