It's certainly either something I'm doing wrong, or a big in the software I'm using to automate signing, notification and stapling.
Here's the issue I opened on the software I'm using to automate: https://github.com/electron-userland/electron-builder/issues... that issue kinks to the PR that adds the automation.
It's a non-trivial thing to test, since it involves so many secrets and the notarization step can take over an hour, so I don't expect anyone here to actually want to look into it.
My original comment really was just venting my frustration, not a cry for help (but I might be crying soon if I cant get to the bottom of this!).