Anyone that has read LOTR will know that palatirs are not good things. The fact that Thiel chose that name for his company gives perhaps some insight into what kind of a person he is.
Apple gave themselves permission to ''scan'' your pictures and video's for illegal content years ago, so if anything is to worry about don't use Apple. Similarly since Windows is closed source, there is no extra protection by encrypting anything because the AI can just use the OS to see the encrypted files.(as you have to decrypt them at some point if the AI hasn't seen them before encrypting)Thinking more about this, it is reported that Microsoft's Windows 12 will be AI powered. It remains to be seen how this will affect the operating system but if I were you lads, I'd encrypt those folders with those videos you downloaded and want to remain a secret as a matter of urgency!