I use KDE Neon on my laptop and I’d prefer to have KDE as a DE on this one too (if possible) but I don’t mind a non Ubuntu base. Basically I’d just like to be able to play games on it without much hassle but I know how to paste commands into the terminal if the need arises.
With a 10 series cards, dx12 performance will be terrible. Nvidia already has issues with dx12 on newer cards but Pascal is beyond worse. You’ll have to enable dx11 on games that support it.
I decided on installing debloated windows for my 1070ti media machine. Plugs into a 4k tv and runs modern games well enough at 1440p on medium.
This is my experience and your mileage may vary. I still use linux (cachyOS) on my main machine with a 3070ti but Nobara or Bazzite are also good as others have mentioned.