I am posting here per this discussion.
The problem is that pages such as https://commons.wikimedia.org/wiki/Special:UploadWizard read "The copyright has definitely expired in the USA" because it was "First published in the United States before 1925" but the American public domain now starts in 1926. Steps to reproduce are to upload anything onto Commons. A suggested solution is to include a dynamic JavaScript-based date that is today's date minus 95 years, rounded up (e.g. 2021-11-18 minus 95 years would be 1926-11-18 but we would round up to 1926-01-01).