Finally found the issue. I went through every conceivable brightness setting offered through Windows, my laptop settings, and Nvidia's control panel. Found mine in Nvidia Control Panel Under "Video" > "Adjust video color settings". I switched it back to "with video player settings" and now the white washout is completely gone. My laptop was naturally dark so I was trying to turn up brightness through whatever means I could find since the display itself was at 100%.
There are about 3 different places in Windows 10 where you can adjust your brightness through software means.
1st I'll list is the one I used to fix my issue above. There is another in the Nvidia control panel. "Display" > "Adjust Desktop color settings". Note the extra tabs. Not sure of the Radeon GUI but I'm sure they have something similar.
2nd Easiest is located in your Notification bar at the corner of your start menu. A sliding bar with a sun next to it.
3rd Bit more complex. In the control panel there is "Color Management". You can type that into your search bar and pull it up that way, as well. Within Color Management window, click on "Advanced" tab and click "Calibrate Display". It walks you through a special monitor calibration that is independent of the default windows one.
Since I've never seen any conglomerate for editing colors and brightness in Windows, I thought I would throw in this explanation. Please forgive my diatribe as I'll likely refer back to this.
Why does this setting only affect Opera GX video player? Nothing else, including any video players I have installed, was affected. Funky. Hope this helps others.