You know my Sinks and Sources automatically start when I start JACK too.
I often stop it and switch devices, and they start with that too.
I forget why it happens though, but it also persists through reboots. I know I didn't create a script for it though.
I'll have to check out your review of 22.10.
I've been thinking about doing one too, but I have other projects that are already started so who knows.