Reason for rpath usage on arm64

[Ryan Schmidt]

Does anyone know why things seem to be using rpath on arm64 builds? For example:

https://trac.macports.org/ticket/64204

The de-facto standard for things installed with MacPorts has been not to use rpath, since MacPorts predates the existence of rpath, and since things have worked fine without rpath, and since things often break when rpath starts being used. I am assuming that someone somewhere thinks that using rpath is a good idea now, perhaps especially on arm64. Anyone know the reason?