Hey, most SW in the GNU/Linux world is designed to allow you to personalize it to your liking. And if you do not like what one application looks like, you can just switch to another which could suit you better. Bear in mind that desktop environments (GNOME, KDE, Cinnamon, etc. – the overall layout and look of your system) are just like other applications, in this sense. Fedora ships with the GNOME environment by default, but if you want something more customizable with the Windows-like layout (or any other layout, customize to the oblivion), KDE Plasma (shown above) could work for you as well. There are plenty of others desktop environment, each with their specifics and differences. Start slow, and if you feel adventurous, feel free to look around and try them.

That being said, Fedora should be a perfectly suitable GNU/Linux distribution for you to start with. After all, it is just an OS, allowing you to run the applications you work with. If you want to have a backup solution, start with dual-booting with Windows, possibly removing Windows later altogether, if you feel like it.

Many distributions (such as Fedora, Ubuntu, Arch Linux, etc.) will give you an option to send some basic telemetry data, but there usually is a way to opt-out, if telemetry is not off by default. And otherwise, the distributions themselves do not collect much data, if any (not the applications you use on them – that would depend on the application altogether, proprietary applications especially, of course).