It would be helpful for those of us who work at Apple Inc to take photos of the problem you consider “fuzzy”. Taking in-game screenshots won’t help but if you take a picture of your screen (sans glare) and post on ImgUr I can promise someone will look at it.
Just from a cursory glance at this thread though it looks like everyone with this problem is using a Radeon RX-580’ish card. I have a Black Magic eGPU here with a Radeon Pro 580 - I will download 8.3 retail and see if I can see the same thing you guys are seeing but I can’t make any promises since I’m on a development branch of Catalina and using an Apple Pro Display. Will update post when I download retail and check.
UPDATE:
Cannot reproduce on my machine(s) that I have available with Radeon 580, Radeon Pro 580 or like video cards. I even tried an eGPU setup with a Corsair Razer V2 and a Sapphire RX-580.