I finally made it into an Apple store to check out the MacBook Pros with quantum dot panels. I inspected two 16-inch models side-by-side. My primary observation was that the panel lottery is real. The better of the two panels (on an M4 Pro) had a brighter screen, reasonably crisp text, and what I would subjectively call a calmer and more stable image that I could actually focus on. The worse panel (on an M4 Max) was more dim overall, had the same dull/murky orange/yellow/green undertone I had previously experienced, and seemed fuzzy and unstable in some way and was difficult to focus on. True tone definitely added irritation on both, and clarity improved after disabling it. After a brief initial impression, I would call the better panel acceptable at best, but I am skeptical about comfort after extended use. In any case, this is not a $2,500 gamble I am willing to take.
Acceptable panel raw serial number: FMXHA2003VZ00006GW+A+GE1S4902582331+PROD+Y433243564367+K60640772Y72140803+434U9GC05124190J43P000A42T46A44X78402IAN49D4882+A14383108439620E43961643961A43962643972044396100
Worse panel raw serial number: FMXH99005BT00006GW+A+GE1S4800725423+PROD+Y427442974311+K80540272Y20140801+430C9GC30424190J43F000A42C45V44X78403IAN48N3647+A24332108435710E43612643612A43611543611044361200
I did not think to try the 14-inch models in the new color (where one user here reportedly found a very comfortable panel). While I would be curious to do so, I do not find that form factor appealing.