The idea that PDFs are "saved" has actually gone away for some time now on the desktop. On desktop Office, we "export" PDFs. The term "save" refers to native file types, with the specified type remaining the open document in future edits/saves. Exporting
doesn't change the current file type.
iOS complicates things further because of the file structure paradigm being so much different, but it would have been nice if Microsoft let us export PDFs right there in OneDrive, where we could easily access them for further processing, rather than having
to email them to ourselves. Perhaps Microsoft doesn't want to over-enable creation of PDFs, an Adobe thing, but the whole emailing of a file to yourself is such a kludgy workaround, and the blame for that is better placed on Apple than Microsoft.
Glad to hear it is working for you, but I am still wondering why it doesn't work for the other folks. We expect that people on subscription have this feature but others don't, but that is still not confirmed in my mind.
Dave S.