Apple/iOS has been trying very hard to convince me to dislike and mistrust them, and the team behind the Concepts app have been trying hard, and increasingly succeeding, to convince me I can like and trust them (lost all my files/drawings/notes; still hoping, possible they’re there somewhere just disconnected). Conclusion at this point: I’m not tossing my ipad yet, though my next tablet will likely have to be an Android (with a pen; I love the Apple pencil (I’m still appalled by the limited design thinking though — am really fortunate my ipad case has a magnet I can stick the eraser cap onto while the pencil’s charging)).
With Android, I can set privacy, and set up backups, and access files of individual apps; very basic necessities for a personal/mobile/essential device.
P.S. I tried getting by without using Concepts for a few days, and all the substitute apps just frustrated me. (I use the others at various times, however Concepts is best for me for uniweldly and expansive notes/doodling / thinking-by-pen/through-hand. I’m glad the Concepts team has proven so dedicated and helpful, so I trust them and still hope to retrieve my files, so I can manually back them up (somehow) in the future and carry on using my lovely iPad with frustrating Appleness of it and good Concepts app with pen[cil].