A controversial suggestion, but you could read up and maybe take a few courses. While I love UX/interaction design you might want to start with UI design and design patterns. Once you get a basic UI and know when to implement different patterns you can move on and work on the UX.
I would suggest the same here, some learning is needed. There’s a reason you hire UX designers and not just more programmers.
You should try moving the OneDrive folder after setup for a complete shitshow. Even Microsoft products fail to read and write to the right places. If I save from word to my documents folder it never appears in OneDrive but in a separate documents folder under my user profile. Luckily OneDrive hides this from normal explorer so you can’t find that file using that