Windows 10 will not install on new PC build no matter what I try

I had a very similar issue to you (posted it recently) and I had tried literally every possible solution to get it to work and nothing did. What I found out is that the recently released Windows 10 version 2004 just didn't boot on my hardware when used to make a bootable USB. So I used the previous version, 1909, with the same exact USB and BIOS settings and it worked. No idea what the specific problem was, aside from Microsoft doing something that borked it for my hardware.

You can use https://tb.rg-adguard.net/ to find a previous iso; however, I used Rufus to download and create the bootable usb. In order to download ISOs with Rufus, you need to make sure to enable automatic updates (for reasons explained in its FAQ). Version 1909 - 19H2 should work, if your issue is the same as mine.

Before doing all this though, it might be useful to create a bootable usb of something like Ubuntu just to do a sanity check to ensure it isn't a formatting/UEFI issue. If it boots correctly, then what I've written should be the solution.