I've found iOS 13 to be a bit disappointing for me, especially after how good 12 was later on in the development cycle.
I've got lots of bugs, even after resets/changing phone. Lots of stuttering, slow downs and the most annoying bug is typing on here and other forums. Every time I enter a new line, it doesn't auto capital, and deleting the first letter of a line takes me back to the previous line.
Very strange behaviour.