If you don't mess with your EFI partitions and your windows partition you'll be fine. The windows built in partition manager works well and is good enough. If you're sitting with issues shrinking your partition, use the native Linux partition manager to do it when you boot from the USB. I'm not familiar with Fedora so I won't be able to help much there. If you do need to use the Fedora partition manager, make sure to disable bitlocker on windows for the drive before you do it. You can just enable it afterwards. Hope it helps!
How long do we thing before things like this are implemented at a larger ISP scale?