I have seen the issue that you are talking about but I am not sure what causes it. I have 25 year old documents printed with laser printer that have not release

I have seen the issue that you are talking about but I am not sure what causes it. I have 25 year old documents printed with laser printer that have not released from the paper at all yet I have ten year old documents where it happens when I bend the paper. My pet theory is that modern paper is not as good because of the high recycled content but that would obviously take a significant effort to test. Another possibility is that modern printers are the problem but this would be even harder to test. I don't print anything to keep anymore so it doesn't really matter anyway.