Audit log for file access

I can not say what is your problem. I can see if the file is accessed by another user (used direct sharing but I don’t think there is a difference).

  1. create test file audit log test.odt as user willi
  2. share the file with user test7
  3. edit the file as user test7
  4. review audit log (I prefer jq parsing for better readability)
    tail -n 100 audit.log|grep 'audit log test'|jq "[.time, .user, .message]|@csv"
  5. file access and modification is visible:
"\"2024-05-03T08:50:23+00:00\",\"willi\",\"File accessed: \"\"/Documents/audit log test.odt\"\"\""
"\"2024-05-03T08:50:32+00:00\",\"willi\",\"The file \"\"/willi/files/Documents/audit log test.odt\"\" with ID \"\"136836\"\" has been shared to the user \"\"test7\"\" with permissions \"\"19\"\"  (Share ID: 31)\""
"\"2024-05-03T08:50:57+00:00\",\"test7\",\"Preview accessed: \"\"_versions/Documents/audit log test.odt.v1714726159\"\" (width: \"\"44\"\", height: \"\"44\"\" crop: \"\"1\"\", mode: \"\"fill\"\")\""
"\"2024-05-03T08:50:57+00:00\",\"test7\",\"File accessed: \"\"/test7/files/audit log test.odt\"\"\""
"\"2024-05-03T08:50:58+00:00\",\"--\",\"File accessed: \"\"/audit log test.odt\"\"\""
"\"2024-05-03T08:51:17+00:00\",\"test7\",\"File accessed: \"\"/test7/files/audit log test.odt\"\"\""
"\"2024-05-03T08:51:17+00:00\",\"--\",\"File accessed: \"\"/audit log test.odt\"\"\""
"\"2024-05-03T08:51:33+00:00\",\"test7\",\"File accessed: \"\"/test7/files/audit log test.odt\"\"\""
"\"2024-05-03T08:51:33+00:00\",\"--\",\"File accessed: \"\"/audit log test.odt\"\"\""
"\"2024-05-03T08:51:50+00:00\",\"test7\",\"File updated: \"\"/audit log test.odt\"\"\""
"\"2024-05-03T08:51:50+00:00\",\"test7\",\"File written to: \"\"/audit log test.odt\"\"\""
"\"2024-05-03T08:55:04+00:00\",\"--\",\"Version \"\"/Documents/audit log test.odt.v1714726159\"\" was deleted.\""