Blank screen issue during fresh Catalina install with an RX 5700 XT

I'm doing a fresh install of Catalina on a new build following the tonymacx86 guide. I can get to the Apple logo screen, but when the loading bar is a little over half full my screen cuts to black and then the computer restarts 5-10 minutes later.

Here are the last lines of verbose mode before it cuts out:

All of my parts were pulled from the tonymacx86 compatibility list:

Mobo: Gigabyte Z390 Aorus Pro Wifi

CPU: Intel i9-9900k

GPU: Sapphire Nitro+ RX 5700 XT

When going back and rereading their buyer's guide, I noticed that it said the RX 5700 XT will only work on Catalina 10.15.2+. My Catalina install software was downloaded from a MBP running Mojave 10.14.6. This may be a dumb question, but does the OS X updater download 10.15.1 to install, or does it default to the latest patch (I believe 10.15.6)? If it is 10.15.1, what's the best workaround to get it up and running so I can update to 10.15.2?

Edit: Of course the answer to finding the software version shows up in a Google search right after I post, it looks like it's the installer for 10.15.6. I think that raises more questions than it answers though, since the RX 5700 XT should be compatible with this version. Any thoughts on what could be causing the issue?

submitted by /u/Swedish_Chef_Bork_x3
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