Buildapc

Anecdotally run a 7800x3d and 7800 XT with almost no problems playing games using steam with proton. Had some trouble with Magicka and setting up Forged Alliance Forever was tedious. Send it.

You’re probably already aware of ProtonDB since you’re using Steam Deck, but posting it here for the benefit of any other unsuspecting readers who are thinking of switching to Linux and haven’t stumbled across this advice yet. ProtonDB lists user reviews and tinker steps for games’ playability on Linux. From what I can tell, most games are perfectly playable on Linux, the biggest wildcard is whether the online anti-cheat works on Linux or not. Good luck!

just like other commentors have said you'll probably want to drop the wifi and ethernet cards, and with the money saved from that you'd get the option to upgrade your:

1. PSU into a higher [wattage/class rating] for better [future proofing/efficiency]
2. CPU cooler for better noise reduction or buying an affordable All-In-One (AIO) liquid cooler (Thermalright is blowing the competition out of the water somehow)

For Linux, AMD is the it_just_works.™️ option and Nvidia's GPUs should also work fine, but I can't say for sure as I personally upgraded from a GTX 1080 to 7900 XTX (I had several infuriating issues with Nvidia on Linux so I didn't want to take any chances)

• I've got exp with Arch, Mint, Ubuntu, Ubuntu Server 18.04 & 19.04, Kali, EndeavourOS, NixOS

Edit:
I shared a wrong link for PSU info but I'm gonna leave it for anyone that wants more info about them

Additional Info:

• [Gamers Nexus] Power Supplies Need a New Rating System (80 Plus Misunderstandings & Cheated Results)
• [Gamers Nexus] Thermalright Strikes Again: $56.90 360mm Liquid Cooler | Frozen Prism Review
• Pcpartpicker Link Filtered for AIOs Under $70 USD

Extra Info:

• [Gamers Nexus] Power Supply Mistakes, Tier Lists, & Myths, ft. Jonny Guru

Case:
The Fractal Design Define 7 without glass pane looks like a boring black box but the dust filters and noise cancelling is wonderful and it's really easy to build in. I would choose that one over the North series.

PSU:
I would try to up the Watt to at least 850W. The closer to 50% psu use the more efficient the psu is and the wattage that isn't used efficiently turns into heat.
Getting a 1000 Watt Platinum PSU would result in a cooler and quieter case, but not very budget friendly.

A stronger PSU also increases the chances of you bringing it with you into your next computer build, or being able to add a stronger GPU to the current build in the future.

Why do you have need an Ethernet and wifi pcie card? This appears to be already both of these features on the motherboard.

I think 64gb is still a bit overkill but why not.

AMD linux support for has just been a breeze these last few years. But Nvidia should work and recent changes might make them easier to deal with.

The motherboard you have chosen has 2.5Gb/s ethernet, and Wifi 6E.

But you are also purchasing a PCI ethernet card capped out at 1Gb/s, and a wifi card which only supports up to ax (wifi6).

Unless you have a specific use case you haven’t mentioned, I am not sure why you would need these at all?

edit

AMD is apparently better supported on linux, however I have been using a 4060(ti?) without issue