Hold finger over the "space" button - you'll switch whole keyboard into the mode where you can move cursor by moving your finger.
"Select all" disappears for 36 y.o. too, and I have no idea why and how to fix it.
"Select all" disappears for 36 y.o. too, and I have no idea why and how to fix it.
Btw (not iOS 13 specific) when I select the word in browser the hovering menu has more options behind a minuscule right arrow that I almost always manage to touch outside, making the menu disappear. And I need the "second part" often. Sad.