Loss of permissions to edit Pages and Numbers documents after macOS Sequoia update

I may have cracked it. I went into the system and found Users folder, then found my file inside that folder. I used Info on that file, changed the settings to Read & Write, then unlocked the locked icon with my password. Now I can change the Numbers spreadsheet. Let me check on a Pages document.... Yes, that worked for Pages, too. Thanks for the help, Old Toad. Apparently the system update changed permissions on the system Users folders. Will check Beloved's folder to see if it was changed, too, and fix that if it has. Appreciate the tips that led me to the answer.

I realized that after your hint above. Thanks. That's where permissions were denied, at that Desktop folder level. Didn't know such a thing was possible. Learn something new everyday I suppose.

Old Toad, Permissions are Read & Write for both. The lock at the bottom of the Info is locked. Unlocking by clicking on the lock icon and entering my password turned the icon into unlocked but I still cannot edit the files. I get the error message that I don't have permission to write to the folder the documents are in. They are on the Desktop, not in a folder.

Unless Desktop is a folder and I don't realize it.