My signed and notarized Electron app has this exact issue. I can replicate is on macOS Tahoe 26.3.1. I see the bug was reported about 8 months ago, and it's still not fixed. This is quite a big problem for apps like mine. It's a very poor and unintuitive UX to expect users to toggle an obscure security setting - which is already set to "on". Could Apple provide an update on when this bug will be finally squashed?