Panels is the weakest point in Meta's headsets (follow up to rumors about Quest 4)
I saw a rumor that Quest 4 will have a 2.5k resolution panels.
There are several issues with this:
1. By this moment there weren't any 2.5k good microOLED VR panels. The only one currently on the market is really old SeeYA. They have some innate issues with biggest being 90Hz being hardware upscaling only.
2. VR is not in the trend right now. Chance of having new 2.5k panels by 2027 is pretty slim. SeeYA allegedly works on new generation of 2.5k or 3k panels but they are nowhere to be seen and they might be unreasonably priced in comparison to old panels. BSB still uses old panels, Dream Air SE will use the same old panels, upcoming wired PfD also.
3. High end right now is 4k panels and there are some pretty good options: AVP, Galaxy XR, Play for Dream, Dream Air, MeganeX. They are all available and good headsets. By the moment Quest 4 will be released 2.5k will look even more outdated.
Why I think Meta will skimp out on the panels:
1. This is the most expensive part of the headset. Especially if 4k is considered. If you consider Meta's quantity - will be too tempting not to reduce costs and get a bonus from higher management. :)
2. Meta historically was cheaping out on the panels:
Quest 2 - single panel.
Quest 3 - cheaper rectangular panels (as a result higher HAM and lower stereo overlap).
Quest Pro - low resolution, generally not very good panel.