[londons_explore]

Doesn't stop them using compound-eye like designs... They can be very thin and have 100+ 'cameras' over just a few square millimeters, all using the same CCD.

As a bonus, they (after a bit of processing) output 3d information, allowing them to use the same system for face ID etc.

[Tagbert]

There just isn’t much market for it. People don’t feel the need to project high res images showing every little flaw. The video conference services generally downscale the video to 1080/720 by default.

You can get up to 4K on external cameras or on a few desktop monitors with thick cases but those cameras are much too large for laptop cases.

[crazygringo]

Surely these are either much more expensive or much lower resolution though?