CatchyOS is based on Arch, so it shouldn't be too hard. I have never used CatchyOS so this is from the perspective of a Fedora user who used ArchInstall.

Arch is quite barebones in the sense it doesn't do GUIs for install and shit, it is terminal centric, that being said it is very fast and efficient and effectively you build your own set up (even in archinstall). Here's what I will say though (idk how much you've looked into it or what your skill level is)...

• If your installing over wifi, iwctl is how you connect to a wifi network. There's plenty of tutorials on this and there's the Wiki, so there's that. It's actually a piece of piss once you understand it.
• archinstall is your friend.
• File systems look confusing? Just use btrfs.
• In Audio systems you can choose what audio system you want, but I just use pipewire.
• Don't forget to set your network options to "network manager".
• Under profile, you can choose if you wanna set up a desktop, server, or whatever and in desktop you can choose whatever DE or WM you want. You won't get the full suite like with other distros, but you will get enough to operate your choice.
• waybar isn't installed automatically of if you are installing hyprland or such, bare that in mind. You will need this to access the nm-applet. Also you can fix the missing symbols in waybar by installing otf-font-awesome either before in Additional Packages or after with sudo pacman -S otf-font-awesome
• You can choose from the whole archlinux package repo in additional packages and here you can install anything additional you might need. I would recommend flatpak if you can't find what you want via pacman, whatever VPN you use, steam, a browser (take your pick) and waybar and otf-font-awesome.
• The wiki and DuckDuckGo are your friends.
• If you are not used to WMs but wanna use one, install a DE as a backup.
• Every morning/every evening/before you shut down for the night, open up a terminal and type sudo pacman -Syu to look for updates and install them. There's no "Updates available" notification for system shit here.