I'm sorry in advance for not bringing anything to this conversation, but I feel I have to say it before I blow - iOS 13 is the most Craptastic iOS Apple has ever released. iOS 11 feels incredibly great by comparison.
Most every Apple apps are broken in a way or another. I've had (annoying) bugs and crashes with Reminders, Notes, Mail & Music only to name those.
It's funny in a way, considering iOS 12 was Apple's way to "appologize" for the shortcomings of iOS 11 and then they do something way worse with iOS 13...
Ah well. I'm done venting.