Hello!
The link to the user license for the Copernicus DEM on AWS found here
https://copernicus-dem-30m.s3.amazonaws.com/readme.html
appears to be out of date. The newer version is (I believe) this fellow:
Specifically, page 18+ discusses the GLO-30 DEM and its free and public use, while the older license appears to be much more restrictive. I think it would be good to update the readme if possible.