@[email protected] Alright. How new is your PC? Is it that new that you could return it? Or is it an older model, so you could imagine replacing it soon (or some of its’ parts) with one that’s better compatible?

While Linux is very compatible with the vast majority of devices (including MS-Surface devices, and even fridges!) it just can be a huge pain in the ass for some other devices, when the manufacturer actively decides against other OSs than Windows. Asus (ROG) and Nvidia are notorious to be a bit annoying to work with on Linux, and in your case, with both of them at the same time, they can be the shittiest entry experience ever!

I think not you, but the hardware is the problem. I just don’t wish anyone that their first experience with Linux is days of troubleshooting, followed by days and weeks of constant crashes, bad performance and other annoyances.
You know, if I wouldn’t be a huge Linux fanboy, I wouldn’t try to help newcomers for free.

But even I have to admit, you’re better off with Windows for now, on this hardware. Maybe try it on a laptop you have lying around or wait until you can get better supported hardware (AMD GPU, other MB, etc.). Right now, I’m not sure if you will get a seamless experience. A workaround, on top of a workaround, isn’t fun and might frustrate you after some time. I’m sorry, it’s just my honest answer for now…

You definitely still can (and maybe even should) try Linux if you’re interested. I find that great! Just don’t put your hopes way too high up for a seamless and wonderful experience.

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As I said in the beginning, I would recommend checking out the uBlue builds. There’s Bazzite, which also offers Nvidia and Asus images.

For the Asus ones, I’m not sure if the ones provided, which are intended for the ROG Ally and laptops, are also beneficial for desktops.
But, for the Nvidia one, you’ll have way better chances for it to work. In general, I would advise you to choose an immutable distro, especially Bazzite, because it’s gaming focused for a gaming focused PC. Why? Your setup will probably break some time with your ^(shitty) hardware. With uBlue, you can just roll back and select the image from yesterday, and your PC will boot the exact same way as it did yesterday and will always work! This saves you much trouble, trust me.

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Also, maybe plug in the HDMI into another port, e.g. the onboard display instead of the Nvidia.

Continue searching for the CSM, or however it is called on your MB. Not only because you want to install Linux, no, because it’s also important to diagnose and fix problems (e.g. MemTest86+, bootrepair, etc.). I also forgot a few times to enable CSM in the past and had very similar issues booting from an USB, also with black screen, error messages, etc.

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I always recommend GPT as a first contact point. Before asking, I often ask Huggingface Chat, with the web search toggle on, and that is very often successful. I did try it and got pretty much the exact answers already mentioned in this comment section. But, if this section didn’t exist, it would have been very helpful. Here is the pasted answer from GPT if you’re interested.

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Give me an update if it worked please. Even if it didn’t, it will be very helpful for other future users when they find this thread :)