Do I just like to do apps? No. I've built serious business application with a graphically complex client area and a bunch of supporting chrome around it and dialogue boxes on top, using Flet. It's nothing like a to do app. But if the first example I saw on the Flet website was that complex I would never have figured out if it was useful!

(Do I just like arguing? Not really but I really did have no idea what your first comment was about, and your follow up was too odd not to reply to, so I got hooked.)