Finally, a bright screen!
Update to https://www.reddit.com/r/thinkpad/s/4rq3WVqTi7
I ended up getting an Innolux N140HCA-G3. While it doesn't have the increased color gamut, it is much brighter, making it easier to see in well-lit classrooms (like many in my campus' tech building). I sorta rushed the install since I didn't have my best tools or a lot of time, so the panel is just barely asked by a degree or so, but it's not noticeable during regular use.
With that said, I think I need to calibrate the colors a bit. It seems like the reds are more vibrant than usual.