LibreWolf does not disable JS or install NoScript out of the box.
This is not due to blocking scripts, by default, LibreWolf does not store cookies of any kind, you can re-enable this behavior in the same place you'd find it in the Firefox settings.
This is incorrect. every option LibreWolf has adjusted for privacy concerns can be overwritten, and it actually has it's own settings page which offers MORE settings than Firefox does out-of-the-box
It has been proven multiple times that upon first startup and normal usage, the only thing LibreWolf connects to is Firefox's addon update server, to update UBlock Origin, as well as the websites you visit (obviously). And even the auto-updating behavior can of course be disabled.