What you didn't have the ability to do though was undo or redo individual adjustments during the editing process. That's all changed in iOS 16, because Apple has added handy Undo and Redo buttons ...

After testing got underway in January, Gboard is now widely rolling out Undo and Redo buttons/shortcuts on Android. Open the shortcuts menu for the new “Undo” button at the very end.

Along with ↩️↩️ RedoGboard adds Undo and Redo buttons for easier editing. Undo can reverse per-letter deletion. Redo is great for undoing accidental Undo. Available with Gboard version 15.