If you’re going to go as far as configuring a desktop from scratch with Hyprland, I really recommend considering Arch. Most of the distros you mentioned bring their own desktop environments and all the resources are around using them that way — I wouldn’t want to modify Fedora into an Sddm + Hyprland setup. You’re going to end up on the arch wiki at some point, because that has some of the best help content for this style of computing, so you’d be having an easier time. Arch gives you everything you need to make it yours without learning anything specific to arch (unlike NixOS where you need to learn Linux underlying setup AND a functional language for configuring your system that fights where all your software expects to be). Yeah, you’ll need to make a lot of decisions for installation, but you’ve already made the decision to go with Hyprland for a compositor, and you can keep the internals simple - unencrypted, ext4 file system, systemd-boot - and get to the fun parts.
Alternatively if you just want to get to gaming, Fedora Silverblue and flatpak steam/lutris and you should be golden.