Thank you, Chien, for your reply.
So, after Dan Nicolae Barzu's comment regarding VRAM (which I never paid attention to, obviously because I haven't experienced memory issues until now), I understand I don't have an IGPU. Further, I know RAMDAC's function and that it's integrated into my DGPU. But I didn't realize, as you said, that it's not typical NOT to have an IGPU.
I thought it was either an IGPU or a DGPU, not both. Of course, I never bothered to know for the reason I mentioned above.
So, now my question is, as Dan suggested:
"IF you have a IGPU and a dedicated GPU attempt to A. Turn off the IGPU in BIOS/UEFI or B. Set a maximum (instead of allowing auto,) amount of RAM that can be allocated as "Shared" VRAM."
Since I don't have both, is it possible to try option "B" still, or is there a way to fix the issue via the BIOS on the DGPU? If so, would the "System Video Memory: 0 MB" shown in my previous image have anything to do with fixing the issue? If that makes sense.
Not that it matters, but I attached another image of VRAM (or lack thereof) that I pulled up using a different path.