[sexpositivepriv]

What I found is that many old apps have "password protected folders". Some video apps, some photos apps, some comic readers. This was to keep certain photos/videos/comic private. Many of those app expose all those "private" files via the Files app entirely defeating the purpose of having a password on them.

[walterbell]

In-app encryption can keep files opaque to Siri/Spotlight/Files. By default, Spotlight/Siri will index in-app content, which may (?) also be sent to iCloud.

[srtjstjsj]

Those files should be marked read-only for the owner and the pubic files world readable.