iPad floating keyboard
Some times it can be helpful to shrink the on-screen keyboard on an iPad, making it easier to use with one hand, then you can change it back to full size. We have found it useful for people with visual neglect (to left or right), as the reduced size keyboard can be positioned at different points on the screen. It can be useful also for people who type with one thumb.
It is easy to set up here: https://support.apple.com/en-au/HT210758