I put this here even though it is hardware due to the fact this is mainly showcasing Linux distro Catchy. You can ignore this aspect and use the information to build your own computer just put on Windows 11 if that is your desire.
I did try catchy and it was fast. Disclosure, I didn't do much in the way of gaming to test it out but I did play around with the setup and making sure the gaming tools were installed and it was extremely easy to set up the base sytem. They have some tools that you can click on to install all the basic components for gaming in one click. NO need to know proton this and Lutris that or the like is very nice.
HOwever, it is a Arch Linux and does rolling updates which can cause trouble and require some tweaking and owrk to keep it going. You can get around this by having a solid backup of your OS and just roll back when you have a problem then update later as it works.
I still believe Bazzite due to it being immutable OS (meaning to those that don't know you can't harm the OS) makes it more solid for those that either don't want to mess with linux systems etc. and just want to run a gaming system or those that don't know how to do these things and want to use a non Windows system to run their games.
Bazzites only draw back for either of the above is you have to wait for a update to fix any issues when an update breaks something. The great thing is a quick easy command you can revert to an older "image" and get back up and running. YOu can also use a second easy command to "Pin" a favorite version to keep it running well. If you want to have a bit more control This you can learn in about 10 minutes. Hell I don't know much but I can easily copy paste the basics that will let you control the versions of the OS, pin, clear pins and revert in a single post here. lol.
When you decide to retire that gaming system and use it for basic computing again, you can "rebase" to another immutable os like Silverblue with a command. LOL. Remove all the stuff that made this a gaming computer without having to use a usb drive and go thorugh the installation process for another OS. The same pin process, commandds etc still work on this version as well