[Solved] [Android beta] allowing Thunderbird to use "Alarms & Reminders"?

Edit: Solved

Either:

• Set K-9 to Unrestricted Battery in Settings > Apps > K-9 Mail > App battery usage, OR
• Allow K-9 in Settings > Apps > Special app access > Alarms & Reminders.

If K-9 is already set to Unrestricted, then it won't appear in the second place.

OS: Android 14, Pixel 8

I'm annoyed by this fixed bug (watch does not vibrate when receiving mail), so I enabled the K-9 beta in the app store, and as of today I have version 6.713 which hopefully has the fix.

The release notes say:

Note: For now please manually allow "alarms & reminders" in Android's app settings when using Push on Android 14

... but I can't find those settings. Under Settings > Apps > Special app access > Alarms & Reminders, K-9 mail isn't listed, and there's no Add button.

I do have Push enabled on my email accounts; and I have the notification silenced.

I have K-9 set to Unrestricted battery access.

What am I missing?