Thank you, I added the command to my Linux Journal,

Your post motivated me to do some more trials and it ended up that my greetd greeter was locking up the audio sink.

So I made sure to add a command after the greeter exits killall -u greeter and the sink finally passed correctly to the logged in user just fine after that.

In reviewing the arch wiki some more too I've installed wire plumber session manager for pipewire, I am still a little confused about it's function and relation to pipewire but maybe that has helped too?

Cheers :)