I did spend quite a bit of time with _h5ai and some versions still include it by default, you can check at 10.10.10.10/_h5ai
Ultimately, we passed on the implementation again because it was so resource intensive and didn’t add a lot of value beyond HTML replacement. We added our own content share module and called it a day. Unfortunately, it’s not something we can help pick back up, but it does work and maybe still installed on some versions.
RACHEL-Plus has a far better featured content management system included in it.