Yep, I have the same issue. Just installed Synapse on my M1 MacBook Air running Tahoe (26.0.1). All the other permissions are registered correctly, but Notifications shows the red exclamation mark no matter what’s selected in Settings. I haven't been using the software long enough to know whether the notifications are coming through despite it thinking they’re not enabled. It’s certainly an annoyance having to close that dialogue every time I open the app.