An 8k monitor is typically 33 million pixels, and the sensor here is 48MP, so the resulting image is going to show at least strong moire patterns, and possibly individual pixels. Note that Apple does have a secret neural classifier on their servers looking for that kind of pattern. I also suspect that getting enough dynamic range out of a screen is tricky.
None of this is impossible, but it could make it really expensive to produce an image that passes forensic analysis.
None of this is impossible, but it could make it really expensive to produce an image that passes forensic analysis.