Having glitching issues with video while using Chrome, Discord & games, but not in OS or regular apps. (Video & details/specs in post)

Video of the issue: https://imgur.com/a/NsLf8iV

• Machine: MSI GP60 2PE Leopard
• CPU: 2.79GHz Intel Core i5 4200H
• Memory: 16GB DDR3
• HD: Kingston 256GB SSD
• GPU: Intel HD 4600 (GeForce 840M disabled)
• OS: Mojave 10.14.6
• Networking: itlwm & heliport
• Config.plist: https://pastebin.com/5f17bXB3 or download
• KEXTS: http://i.imgur.com/u6mmeWr.png
• About This Mac: https://i.imgur.com/dPFyK16.png
• System Report: https://i.imgur.com/b1hVZ2l.png

I spent much of last night googling solutions. Can not seem to find the right one. Maybe it's something I did wrong in my config or loaded kexts? Maybe I missed a key search term?

I tried using the FakePCIID kexts, tried multiple configs, and even changed my SMBIOS, but to no avail.

For the record, everything else seems to work fine. I was even able to determine through SwitchResX that it is displaying at 59.93FPS. I get no tearing when shaking a window.

Finally, I dual-boot this into Windows and there are ZERO issues there.

Maybe someone more seasoned and experienced will have a better idea?

Thanks