After a search, you need to create a cart or a list to download the results or send them by email. It is not intuitive, and it should be possible directly from the result page.
This is at least a partical duplicate of bug 27859
It's more general I think. I had this idea while using the catalogue of French National Library https://catalogue.bnf.fr/ : after a search you are given these choices (with a lot of options for customizing the table of results) RETRIEVE RECORDS > My selection (2) -- Download/Print -- Send by e-mail -- Export to a table -- Transfer to a ILS (marc format) > All results (190 871) -- Export in a table -- Transfer to ILS (marc format)