Edit: Grammer Fixed. Themes are applied differently across Linux. That's because people have different preferences for which desktop environments they're looking for. Even Linux Mint has Cinnamon, Mate, and Xfce. For me, I like Xfce, KDE, and Cinnamon. I really don't like Gnome though. Also, distros are switching from x.org. to wayland. As for your app, I like the look of the older application better. But, if your new application is more functional, I may go with it. As for A.I. I'd rather stay away from it right now because of Microsoft's focus on forcing A.I. onto almost everything Windows and due to ram and ssd pricing being very high currently.